Home / 87,281.46-130,922.29-28,125.94

Finding the Fourth Proportional to 87,281.46, 130,922.29 and 28,125.94

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Solution

The fourth proportional to 87,281.46, 130,922.29 and 28,125.94 is: 42,188.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,281.46 : 130,922.29 = 28,125.94 : x
  2. Step 2: Convert to fraction form
    87,281.46/130,922.29 = 28,125.94/x
  3. Step 3: Cross multiply
    87,281.46x = 130,922.29 × 28,125.94
  4. Step 4: Simplify right side
    87,281.46x = 3,682,312,473.20
  5. Step 5: Solve for x
    x = 3,682,312,473.20/87,281.46
  6. Step 6: Final answer
    x = 42,188.94

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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.