Home / 87,407.60-120,588.32-49,158.37

Finding the Fourth Proportional to 87,407.60, 120,588.32 and 49,158.37

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Solution

The fourth proportional to 87,407.60, 120,588.32 and 49,158.37 is: 67,819.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,407.60 : 120,588.32 = 49,158.37 : x
  2. Step 2: Convert to fraction form
    87,407.60/120,588.32 = 49,158.37/x
  3. Step 3: Cross multiply
    87,407.60x = 120,588.32 × 49,158.37
  4. Step 4: Simplify right side
    87,407.60x = 5,927,924,704.98
  5. Step 5: Solve for x
    x = 5,927,924,704.98/87,407.60
  6. Step 6: Final answer
    x = 67,819.33

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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.