Home / 87,282.49-130,830.55-49,761.77

Finding the Fourth Proportional to 87,282.49, 130,830.55 and 49,761.77

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Solution

The fourth proportional to 87,282.49, 130,830.55 and 49,761.77 is: 74,589.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,282.49 : 130,830.55 = 49,761.77 : x
  2. Step 2: Convert to fraction form
    87,282.49/130,830.55 = 49,761.77/x
  3. Step 3: Cross multiply
    87,282.49x = 130,830.55 × 49,761.77
  4. Step 4: Simplify right side
    87,282.49x = 6,510,359,677.36
  5. Step 5: Solve for x
    x = 6,510,359,677.36/87,282.49
  6. Step 6: Final answer
    x = 74,589.53

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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.