Home / 87,742.04-131,599.28-28,577.21

Finding the Fourth Proportional to 87,742.04, 131,599.28 and 28,577.21

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Solution

The fourth proportional to 87,742.04, 131,599.28 and 28,577.21 is: 42,861.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,742.04 : 131,599.28 = 28,577.21 : x
  2. Step 2: Convert to fraction form
    87,742.04/131,599.28 = 28,577.21/x
  3. Step 3: Cross multiply
    87,742.04x = 131,599.28 × 28,577.21
  4. Step 4: Simplify right side
    87,742.04x = 3,760,739,673.86
  5. Step 5: Solve for x
    x = 3,760,739,673.86/87,742.04
  6. Step 6: Final answer
    x = 42,861.32

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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.