Home / 87,845.04-131,461.11-71,865.36

Finding the Fourth Proportional to 87,845.04, 131,461.11 and 71,865.36

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Solution

The fourth proportional to 87,845.04, 131,461.11 and 71,865.36 is: 107,547.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,845.04 : 131,461.11 = 71,865.36 : x
  2. Step 2: Convert to fraction form
    87,845.04/131,461.11 = 71,865.36/x
  3. Step 3: Cross multiply
    87,845.04x = 131,461.11 × 71,865.36
  4. Step 4: Simplify right side
    87,845.04x = 9,447,499,996.15
  5. Step 5: Solve for x
    x = 9,447,499,996.15/87,845.04
  6. Step 6: Final answer
    x = 107,547.34

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1.5x scale

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.