Home / 87,702.64-131,573.40-40,930

Finding the Fourth Proportional to 87,702.64, 131,573.40 and 40,930

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Solution

The fourth proportional to 87,702.64, 131,573.40 and 40,930 is: 61,404.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,702.64 : 131,573.40 = 40,930 : x
  2. Step 2: Convert to fraction form
    87,702.64/131,573.40 = 40,930/x
  3. Step 3: Cross multiply
    87,702.64x = 131,573.40 × 40,930
  4. Step 4: Simplify right side
    87,702.64x = 5,385,299,262
  5. Step 5: Solve for x
    x = 5,385,299,262/87,702.64
  6. Step 6: Final answer
    x = 61,404.07

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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.