Home / 57,129.12-78,839.01-32,916.72

Finding the Fourth Proportional to 57,129.12, 78,839.01 and 32,916.72

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Solution

The fourth proportional to 57,129.12, 78,839.01 and 32,916.72 is: 45,425.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,129.12 : 78,839.01 = 32,916.72 : x
  2. Step 2: Convert to fraction form
    57,129.12/78,839.01 = 32,916.72/x
  3. Step 3: Cross multiply
    57,129.12x = 78,839.01 × 32,916.72
  4. Step 4: Simplify right side
    57,129.12x = 2,595,121,617.25
  5. Step 5: Solve for x
    x = 2,595,121,617.25/57,129.12
  6. Step 6: Final answer
    x = 45,425.55

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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.