Home / 87,840.40-131,458.20-52,805.20

Finding the Fourth Proportional to 87,840.40, 131,458.20 and 52,805.20

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Solution

The fourth proportional to 87,840.40, 131,458.20 and 52,805.20 is: 79,026.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,840.40 : 131,458.20 = 52,805.20 : x
  2. Step 2: Convert to fraction form
    87,840.40/131,458.20 = 52,805.20/x
  3. Step 3: Cross multiply
    87,840.40x = 131,458.20 × 52,805.20
  4. Step 4: Simplify right side
    87,840.40x = 6,941,676,542.64
  5. Step 5: Solve for x
    x = 6,941,676,542.64/87,840.40
  6. Step 6: Final answer
    x = 79,026.01

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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.