Home / 87,225.05-130,754.45-28,019.15

Finding the Fourth Proportional to 87,225.05, 130,754.45 and 28,019.15

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Solution

The fourth proportional to 87,225.05, 130,754.45 and 28,019.15 is: 42,002.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,225.05 : 130,754.45 = 28,019.15 : x
  2. Step 2: Convert to fraction form
    87,225.05/130,754.45 = 28,019.15/x
  3. Step 3: Cross multiply
    87,225.05x = 130,754.45 × 28,019.15
  4. Step 4: Simplify right side
    87,225.05x = 3,663,628,454.32
  5. Step 5: Solve for x
    x = 3,663,628,454.32/87,225.05
  6. Step 6: Final answer
    x = 42,002.02

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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.