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Finding the Fourth Proportional to 83,695.96, 115,500.74 and 45,455.56

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Solution

The fourth proportional to 83,695.96, 115,500.74 and 45,455.56 is: 62,728.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,695.96 : 115,500.74 = 45,455.56 : x
  2. Step 2: Convert to fraction form
    83,695.96/115,500.74 = 45,455.56/x
  3. Step 3: Cross multiply
    83,695.96x = 115,500.74 × 45,455.56
  4. Step 4: Simplify right side
    83,695.96x = 5,250,150,817.11
  5. Step 5: Solve for x
    x = 5,250,150,817.11/83,695.96
  6. Step 6: Final answer
    x = 62,728.84

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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.