Home / 87,170.18-130,630.52-49,652.80

Finding the Fourth Proportional to 87,170.18, 130,630.52 and 49,652.80

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Solution

The fourth proportional to 87,170.18, 130,630.52 and 49,652.80 is: 74,408.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,170.18 : 130,630.52 = 49,652.80 : x
  2. Step 2: Convert to fraction form
    87,170.18/130,630.52 = 49,652.80/x
  3. Step 3: Cross multiply
    87,170.18x = 130,630.52 × 49,652.80
  4. Step 4: Simplify right side
    87,170.18x = 6,486,170,881.01
  5. Step 5: Solve for x
    x = 6,486,170,881.01/87,170.18
  6. Step 6: Final answer
    x = 74,408.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.