Home / 87,130.08-120,212.10-49,397.04

Finding the Fourth Proportional to 87,130.08, 120,212.10 and 49,397.04

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Solution

The fourth proportional to 87,130.08, 120,212.10 and 49,397.04 is: 68,152.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,130.08 : 120,212.10 = 49,397.04 : x
  2. Step 2: Convert to fraction form
    87,130.08/120,212.10 = 49,397.04/x
  3. Step 3: Cross multiply
    87,130.08x = 120,212.10 × 49,397.04
  4. Step 4: Simplify right side
    87,130.08x = 5,938,121,912.18
  5. Step 5: Solve for x
    x = 5,938,121,912.18/87,130.08
  6. Step 6: Final answer
    x = 68,152.38

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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.