Home / 91,087.35-136,631.03-31,923.01

Finding the Fourth Proportional to 91,087.35, 136,631.03 and 31,923.01

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Solution

The fourth proportional to 91,087.35, 136,631.03 and 31,923.01 is: 47,884.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,087.35 : 136,631.03 = 31,923.01 : x
  2. Step 2: Convert to fraction form
    91,087.35/136,631.03 = 31,923.01/x
  3. Step 3: Cross multiply
    91,087.35x = 136,631.03 × 31,923.01
  4. Step 4: Simplify right side
    91,087.35x = 4,361,673,748.17
  5. Step 5: Solve for x
    x = 4,361,673,748.17/91,087.35
  6. Step 6: Final answer
    x = 47,884.52

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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.