Home / 61,385.66-84,711.60-34,161.28

Finding the Fourth Proportional to 61,385.66, 84,711.60 and 34,161.28

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Solution

The fourth proportional to 61,385.66, 84,711.60 and 34,161.28 is: 47,142.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,385.66 : 84,711.60 = 34,161.28 : x
  2. Step 2: Convert to fraction form
    61,385.66/84,711.60 = 34,161.28/x
  3. Step 3: Cross multiply
    61,385.66x = 84,711.60 × 34,161.28
  4. Step 4: Simplify right side
    61,385.66x = 2,893,856,516.04
  5. Step 5: Solve for x
    x = 2,893,856,516.04/61,385.66
  6. Step 6: Final answer
    x = 47,142.22

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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.