Home / 83,693.12-115,502.16-45,967.76

Finding the Fourth Proportional to 83,693.12, 115,502.16 and 45,967.76

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Solution

The fourth proportional to 83,693.12, 115,502.16 and 45,967.76 is: 63,438.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,693.12 : 115,502.16 = 45,967.76 : x
  2. Step 2: Convert to fraction form
    83,693.12/115,502.16 = 45,967.76/x
  3. Step 3: Cross multiply
    83,693.12x = 115,502.16 × 45,967.76
  4. Step 4: Simplify right side
    83,693.12x = 5,309,375,570.36
  5. Step 5: Solve for x
    x = 5,309,375,570.36/83,693.12
  6. Step 6: Final answer
    x = 63,438.61

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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.