Home / 87,661.52-131,436.02-52,113.36

Finding the Fourth Proportional to 87,661.52, 131,436.02 and 52,113.36

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Solution

The fourth proportional to 87,661.52, 131,436.02 and 52,113.36 is: 78,136.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,661.52 : 131,436.02 = 52,113.36 : x
  2. Step 2: Convert to fraction form
    87,661.52/131,436.02 = 52,113.36/x
  3. Step 3: Cross multiply
    87,661.52x = 131,436.02 × 52,113.36
  4. Step 4: Simplify right side
    87,661.52x = 6,849,572,627.23
  5. Step 5: Solve for x
    x = 6,849,572,627.23/87,661.52
  6. Step 6: Final answer
    x = 78,136.59

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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.