Home / 74,572.13-102,909.36-40,580.61

Finding the Fourth Proportional to 74,572.13, 102,909.36 and 40,580.61

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Solution

The fourth proportional to 74,572.13, 102,909.36 and 40,580.61 is: 56,001.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,572.13 : 102,909.36 = 40,580.61 : x
  2. Step 2: Convert to fraction form
    74,572.13/102,909.36 = 40,580.61/x
  3. Step 3: Cross multiply
    74,572.13x = 102,909.36 × 40,580.61
  4. Step 4: Simplify right side
    74,572.13x = 4,176,124,400.61
  5. Step 5: Solve for x
    x = 4,176,124,400.61/74,572.13
  6. Step 6: Final answer
    x = 56,001.14

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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.