Home / 84,172.08-126,253.17-31,577.16

Finding the Fourth Proportional to 84,172.08, 126,253.17 and 31,577.16

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Solution

The fourth proportional to 84,172.08, 126,253.17 and 31,577.16 is: 47,363.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,172.08 : 126,253.17 = 31,577.16 : x
  2. Step 2: Convert to fraction form
    84,172.08/126,253.17 = 31,577.16/x
  3. Step 3: Cross multiply
    84,172.08x = 126,253.17 × 31,577.16
  4. Step 4: Simplify right side
    84,172.08x = 3,986,716,549.60
  5. Step 5: Solve for x
    x = 3,986,716,549.60/84,172.08
  6. Step 6: Final answer
    x = 47,363.88

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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.