Home / 87,567.47-131,369.66-28,398.53

Finding the Fourth Proportional to 87,567.47, 131,369.66 and 28,398.53

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Solution

The fourth proportional to 87,567.47, 131,369.66 and 28,398.53 is: 42,603.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,567.47 : 131,369.66 = 28,398.53 : x
  2. Step 2: Convert to fraction form
    87,567.47/131,369.66 = 28,398.53/x
  3. Step 3: Cross multiply
    87,567.47x = 131,369.66 × 28,398.53
  4. Step 4: Simplify right side
    87,567.47x = 3,730,705,030.89
  5. Step 5: Solve for x
    x = 3,730,705,030.89/87,567.47
  6. Step 6: Final answer
    x = 42,603.78

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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.