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Finding the Fourth Proportional to 81,294.55, 112,186.47 and 45,492.97

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Solution

The fourth proportional to 81,294.55, 112,186.47 and 45,492.97 is: 62,780.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,294.55 : 112,186.47 = 45,492.97 : x
  2. Step 2: Convert to fraction form
    81,294.55/112,186.47 = 45,492.97/x
  3. Step 3: Cross multiply
    81,294.55x = 112,186.47 × 45,492.97
  4. Step 4: Simplify right side
    81,294.55x = 5,103,695,714.12
  5. Step 5: Solve for x
    x = 5,103,695,714.12/81,294.55
  6. Step 6: Final answer
    x = 62,780.29

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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.