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Finding the Fourth Proportional to 87,147.92, 130,600.92 and 45,511.76

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Solution

The fourth proportional to 87,147.92, 130,600.92 and 45,511.76 is: 68,204.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,147.92 : 130,600.92 = 45,511.76 : x
  2. Step 2: Convert to fraction form
    87,147.92/130,600.92 = 45,511.76/x
  3. Step 3: Cross multiply
    87,147.92x = 130,600.92 × 45,511.76
  4. Step 4: Simplify right side
    87,147.92x = 5,943,877,726.82
  5. Step 5: Solve for x
    x = 5,943,877,726.82/87,147.92
  6. Step 6: Final answer
    x = 68,204.47

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1.5x scale

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.