Home / 83,892.57-125,838.89-69,070.36

Finding the Fourth Proportional to 83,892.57, 125,838.89 and 69,070.36

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Solution

The fourth proportional to 83,892.57, 125,838.89 and 69,070.36 is: 103,605.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,892.57 : 125,838.89 = 69,070.36 : x
  2. Step 2: Convert to fraction form
    83,892.57/125,838.89 = 69,070.36/x
  3. Step 3: Cross multiply
    83,892.57x = 125,838.89 × 69,070.36
  4. Step 4: Simplify right side
    83,892.57x = 8,691,737,434.30
  5. Step 5: Solve for x
    x = 8,691,737,434.30/83,892.57
  6. Step 6: Final answer
    x = 103,605.57

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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.