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Finding the Fourth Proportional to 81,266.88, 112,158.68 and 45,458.88

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Solution

The fourth proportional to 81,266.88, 112,158.68 and 45,458.88 is: 62,739.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,266.88 : 112,158.68 = 45,458.88 : x
  2. Step 2: Convert to fraction form
    81,266.88/112,158.68 = 45,458.88/x
  3. Step 3: Cross multiply
    81,266.88x = 112,158.68 × 45,458.88
  4. Step 4: Simplify right side
    81,266.88x = 5,098,607,975.08
  5. Step 5: Solve for x
    x = 5,098,607,975.08/81,266.88
  6. Step 6: Final answer
    x = 62,739.06

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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.