Home / 87,348.30-120,418.59-73,865.44

Finding the Fourth Proportional to 87,348.30, 120,418.59 and 73,865.44

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Solution

The fourth proportional to 87,348.30, 120,418.59 and 73,865.44 is: 101,831.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,348.30 : 120,418.59 = 73,865.44 : x
  2. Step 2: Convert to fraction form
    87,348.30/120,418.59 = 73,865.44/x
  3. Step 3: Cross multiply
    87,348.30x = 120,418.59 × 73,865.44
  4. Step 4: Simplify right side
    87,348.30x = 8,894,772,134.53
  5. Step 5: Solve for x
    x = 8,894,772,134.53/87,348.30
  6. Step 6: Final answer
    x = 101,831.08

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1.5x scale

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.