Home / 87,475.20-120,706.56-49,743.36

Finding the Fourth Proportional to 87,475.20, 120,706.56 and 49,743.36

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Solution

The fourth proportional to 87,475.20, 120,706.56 and 49,743.36 is: 68,640.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,475.20 : 120,706.56 = 49,743.36 : x
  2. Step 2: Convert to fraction form
    87,475.20/120,706.56 = 49,743.36/x
  3. Step 3: Cross multiply
    87,475.20x = 120,706.56 × 49,743.36
  4. Step 4: Simplify right side
    87,475.20x = 6,004,349,868.44
  5. Step 5: Solve for x
    x = 6,004,349,868.44/87,475.20
  6. Step 6: Final answer
    x = 68,640.60

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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.