Home / 81,232.27-112,100.76-45,422.88

Finding the Fourth Proportional to 81,232.27, 112,100.76 and 45,422.88

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Solution

The fourth proportional to 81,232.27, 112,100.76 and 45,422.88 is: 62,683.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,232.27 : 112,100.76 = 45,422.88 : x
  2. Step 2: Convert to fraction form
    81,232.27/112,100.76 = 45,422.88/x
  3. Step 3: Cross multiply
    81,232.27x = 112,100.76 × 45,422.88
  4. Step 4: Simplify right side
    81,232.27x = 5,091,938,949.01
  5. Step 5: Solve for x
    x = 5,091,938,949.01/81,232.27
  6. Step 6: Final answer
    x = 62,683.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.