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Finding the Fourth Proportional to 83,412.52, 115,110.96 and 45,686.80

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Solution

The fourth proportional to 83,412.52, 115,110.96 and 45,686.80 is: 63,048.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,412.52 : 115,110.96 = 45,686.80 : x
  2. Step 2: Convert to fraction form
    83,412.52/115,110.96 = 45,686.80/x
  3. Step 3: Cross multiply
    83,412.52x = 115,110.96 × 45,686.80
  4. Step 4: Simplify right side
    83,412.52x = 5,259,051,407.33
  5. Step 5: Solve for x
    x = 5,259,051,407.33/83,412.52
  6. Step 6: Final answer
    x = 63,048.71

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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.