Home / 87,031.43-130,545.32-47,069.47

Finding the Fourth Proportional to 87,031.43, 130,545.32 and 47,069.47

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Solution

The fourth proportional to 87,031.43, 130,545.32 and 47,069.47 is: 70,603.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,031.43 : 130,545.32 = 47,069.47 : x
  2. Step 2: Convert to fraction form
    87,031.43/130,545.32 = 47,069.47/x
  3. Step 3: Cross multiply
    87,031.43x = 130,545.32 × 47,069.47
  4. Step 4: Simplify right side
    87,031.43x = 6,144,699,023.38
  5. Step 5: Solve for x
    x = 6,144,699,023.38/87,031.43
  6. Step 6: Final answer
    x = 70,603.22

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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.