Home / 87,488.56-120,702.63-57,291.10

Finding the Fourth Proportional to 87,488.56, 120,702.63 and 57,291.10

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Solution

The fourth proportional to 87,488.56, 120,702.63 and 57,291.10 is: 79,041.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,488.56 : 120,702.63 = 57,291.10 : x
  2. Step 2: Convert to fraction form
    87,488.56/120,702.63 = 57,291.10/x
  3. Step 3: Cross multiply
    87,488.56x = 120,702.63 × 57,291.10
  4. Step 4: Simplify right side
    87,488.56x = 6,915,186,445.59
  5. Step 5: Solve for x
    x = 6,915,186,445.59/87,488.56
  6. Step 6: Final answer
    x = 79,041.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.