Home / 87,090.54-120,184.92-49,364.76

Finding the Fourth Proportional to 87,090.54, 120,184.92 and 49,364.76

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Solution

The fourth proportional to 87,090.54, 120,184.92 and 49,364.76 is: 68,123.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,090.54 : 120,184.92 = 49,364.76 : x
  2. Step 2: Convert to fraction form
    87,090.54/120,184.92 = 49,364.76/x
  3. Step 3: Cross multiply
    87,090.54x = 120,184.92 × 49,364.76
  4. Step 4: Simplify right side
    87,090.54x = 5,932,899,731.42
  5. Step 5: Solve for x
    x = 5,932,899,731.42/87,090.54
  6. Step 6: Final answer
    x = 68,123.35

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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.