Home / 87,179.64-130,774.14-28,010.76

Finding the Fourth Proportional to 87,179.64, 130,774.14 and 28,010.76

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Solution

The fourth proportional to 87,179.64, 130,774.14 and 28,010.76 is: 42,017.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,179.64 : 130,774.14 = 28,010.76 : x
  2. Step 2: Convert to fraction form
    87,179.64/130,774.14 = 28,010.76/x
  3. Step 3: Cross multiply
    87,179.64x = 130,774.14 × 28,010.76
  4. Step 4: Simplify right side
    87,179.64x = 3,663,083,049.75
  5. Step 5: Solve for x
    x = 3,663,083,049.75/87,179.64
  6. Step 6: Final answer
    x = 42,017.64

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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.