Home / 87,657.12-131,502.96-28,488.96

Finding the Fourth Proportional to 87,657.12, 131,502.96 and 28,488.96

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Solution

The fourth proportional to 87,657.12, 131,502.96 and 28,488.96 is: 42,739.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,657.12 : 131,502.96 = 28,488.96 : x
  2. Step 2: Convert to fraction form
    87,657.12/131,502.96 = 28,488.96/x
  3. Step 3: Cross multiply
    87,657.12x = 131,502.96 × 28,488.96
  4. Step 4: Simplify right side
    87,657.12x = 3,746,382,567.32
  5. Step 5: Solve for x
    x = 3,746,382,567.32/87,657.12
  6. Step 6: Final answer
    x = 42,739.06

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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.