Home / 57,781,367.56-79,743,331.80-31,680,929.92

Finding the Fourth Proportional to 57,781,367.56, 79,743,331.80 and 31,680,929.92

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Solution

The fourth proportional to 57,781,367.56, 79,743,331.80 and 31,680,929.92 is: 43,722,449.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,781,367.56 : 79,743,331.80 = 31,680,929.92 : x
  2. Step 2: Convert to fraction form
    57,781,367.56/79,743,331.80 = 31,680,929.92/x
  3. Step 3: Cross multiply
    57,781,367.56x = 79,743,331.80 × 31,680,929.92
  4. Step 4: Simplify right side
    57,781,367.56x = 2,526,342,906,343,107.50
  5. Step 5: Solve for x
    x = 2,526,342,906,343,107.50/57,781,367.56
  6. Step 6: Final answer
    x = 43,722,449.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.