Home / 90,935.56-136,403.61-31,771.24

Finding the Fourth Proportional to 90,935.56, 136,403.61 and 31,771.24

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Solution

The fourth proportional to 90,935.56, 136,403.61 and 31,771.24 is: 47,656.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,935.56 : 136,403.61 = 31,771.24 : x
  2. Step 2: Convert to fraction form
    90,935.56/136,403.61 = 31,771.24/x
  3. Step 3: Cross multiply
    90,935.56x = 136,403.61 × 31,771.24
  4. Step 4: Simplify right side
    90,935.56x = 4,333,711,548.74
  5. Step 5: Solve for x
    x = 4,333,711,548.74/90,935.56
  6. Step 6: Final answer
    x = 47,656.95

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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.