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Finding the Fourth Proportional to 83,489.56, 115,214.34 and 45,763.88

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Solution

The fourth proportional to 83,489.56, 115,214.34 and 45,763.88 is: 63,153.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,489.56 : 115,214.34 = 45,763.88 : x
  2. Step 2: Convert to fraction form
    83,489.56/115,214.34 = 45,763.88/x
  3. Step 3: Cross multiply
    83,489.56x = 115,214.34 × 45,763.88
  4. Step 4: Simplify right side
    83,489.56x = 5,272,655,230.04
  5. Step 5: Solve for x
    x = 5,272,655,230.04/83,489.56
  6. Step 6: Final answer
    x = 63,153.47

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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.