Home / 87,423.32-130,853.00-45,245.39

Finding the Fourth Proportional to 87,423.32, 130,853.00 and 45,245.39

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Solution

The fourth proportional to 87,423.32, 130,853.00 and 45,245.39 is: 67,722.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,423.32 : 130,853.00 = 45,245.39 : x
  2. Step 2: Convert to fraction form
    87,423.32/130,853.00 = 45,245.39/x
  3. Step 3: Cross multiply
    87,423.32x = 130,853.00 × 45,245.39
  4. Step 4: Simplify right side
    87,423.32x = 5,920,494,476.52
  5. Step 5: Solve for x
    x = 5,920,494,476.52/87,423.32
  6. Step 6: Final answer
    x = 67,722.14

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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.