Home / 87,089.25-120,184.56-48,857.31

Finding the Fourth Proportional to 87,089.25, 120,184.56 and 48,857.31

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Solution

The fourth proportional to 87,089.25, 120,184.56 and 48,857.31 is: 67,423.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,089.25 : 120,184.56 = 48,857.31 : x
  2. Step 2: Convert to fraction form
    87,089.25/120,184.56 = 48,857.31/x
  3. Step 3: Cross multiply
    87,089.25x = 120,184.56 × 48,857.31
  4. Step 4: Simplify right side
    87,089.25x = 5,871,894,305.13
  5. Step 5: Solve for x
    x = 5,871,894,305.13/87,089.25
  6. Step 6: Final answer
    x = 67,423.87

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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.