Home / 40,385.80-60,557.10-14,091.40

Finding the Fourth Proportional to 40,385.80, 60,557.10 and 14,091.40

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Solution

The fourth proportional to 40,385.80, 60,557.10 and 14,091.40 is: 21,129.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,385.80 : 60,557.10 = 14,091.40 : x
  2. Step 2: Convert to fraction form
    40,385.80/60,557.10 = 14,091.40/x
  3. Step 3: Cross multiply
    40,385.80x = 60,557.10 × 14,091.40
  4. Step 4: Simplify right side
    40,385.80x = 853,334,318.94
  5. Step 5: Solve for x
    x = 853,334,318.94/40,385.80
  6. Step 6: Final answer
    x = 21,129.56

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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.