Home / 87,569.12-131,372.88-28,410.76

Finding the Fourth Proportional to 87,569.12, 131,372.88 and 28,410.76

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Solution

The fourth proportional to 87,569.12, 131,372.88 and 28,410.76 is: 42,622.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,569.12 : 131,372.88 = 28,410.76 : x
  2. Step 2: Convert to fraction form
    87,569.12/131,372.88 = 28,410.76/x
  3. Step 3: Cross multiply
    87,569.12x = 131,372.88 × 28,410.76
  4. Step 4: Simplify right side
    87,569.12x = 3,732,403,364.19
  5. Step 5: Solve for x
    x = 3,732,403,364.19/87,569.12
  6. Step 6: Final answer
    x = 42,622.37

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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.