Home / 57,129,034.59-78,837,821.24-31,023,337.23

Finding the Fourth Proportional to 57,129,034.59, 78,837,821.24 and 31,023,337.23

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Solution

The fourth proportional to 57,129,034.59, 78,837,821.24 and 31,023,337.23 is: 42,812,071.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,129,034.59 : 78,837,821.24 = 31,023,337.23 : x
  2. Step 2: Convert to fraction form
    57,129,034.59/78,837,821.24 = 31,023,337.23/x
  3. Step 3: Cross multiply
    57,129,034.59x = 78,837,821.24 × 31,023,337.23
  4. Step 4: Simplify right side
    57,129,034.59x = 2,445,812,314,651,860
  5. Step 5: Solve for x
    x = 2,445,812,314,651,860/57,129,034.59
  6. Step 6: Final answer
    x = 42,812,071.52

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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.