Home / 87,409.17-120,623.40-49,165.83

Finding the Fourth Proportional to 87,409.17, 120,623.40 and 49,165.83

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Solution

The fourth proportional to 87,409.17, 120,623.40 and 49,165.83 is: 67,848.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,409.17 : 120,623.40 = 49,165.83 : x
  2. Step 2: Convert to fraction form
    87,409.17/120,623.40 = 49,165.83/x
  3. Step 3: Cross multiply
    87,409.17x = 120,623.40 × 49,165.83
  4. Step 4: Simplify right side
    87,409.17x = 5,930,549,578.42
  5. Step 5: Solve for x
    x = 5,930,549,578.42/87,409.17
  6. Step 6: Final answer
    x = 67,848.14

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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.