Home / 87,276.47-120,434.13-49,033.02

Finding the Fourth Proportional to 87,276.47, 120,434.13 and 49,033.02

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Solution

The fourth proportional to 87,276.47, 120,434.13 and 49,033.02 is: 67,661.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,276.47 : 120,434.13 = 49,033.02 : x
  2. Step 2: Convert to fraction form
    87,276.47/120,434.13 = 49,033.02/x
  3. Step 3: Cross multiply
    87,276.47x = 120,434.13 × 49,033.02
  4. Step 4: Simplify right side
    87,276.47x = 5,905,249,104.97
  5. Step 5: Solve for x
    x = 5,905,249,104.97/87,276.47
  6. Step 6: Final answer
    x = 67,661.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.