Home / 90,760.93-136,142.07-31,596.46

Finding the Fourth Proportional to 90,760.93, 136,142.07 and 31,596.46

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Solution

The fourth proportional to 90,760.93, 136,142.07 and 31,596.46 is: 47,394.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,760.93 : 136,142.07 = 31,596.46 : x
  2. Step 2: Convert to fraction form
    90,760.93/136,142.07 = 31,596.46/x
  3. Step 3: Cross multiply
    90,760.93x = 136,142.07 × 31,596.46
  4. Step 4: Simplify right side
    90,760.93x = 4,301,607,469.07
  5. Step 5: Solve for x
    x = 4,301,607,469.07/90,760.93
  6. Step 6: Final answer
    x = 47,394.92

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.