Home / 42,773.90-64,160.89-11,609.15

Finding the Fourth Proportional to 42,773.90, 64,160.89 and 11,609.15

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Solution

The fourth proportional to 42,773.90, 64,160.89 and 11,609.15 is: 17,413.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,773.90 : 64,160.89 = 11,609.15 : x
  2. Step 2: Convert to fraction form
    42,773.90/64,160.89 = 11,609.15/x
  3. Step 3: Cross multiply
    42,773.90x = 64,160.89 × 11,609.15
  4. Step 4: Simplify right side
    42,773.90x = 744,853,527.52
  5. Step 5: Solve for x
    x = 744,853,527.52/42,773.90
  6. Step 6: Final answer
    x = 17,413.74

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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.