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Finding the Fourth Proportional to 83,488.80, 115,214.28 and 45,249.48

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Solution

The fourth proportional to 83,488.80, 115,214.28 and 45,249.48 is: 62,444.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,488.80 : 115,214.28 = 45,249.48 : x
  2. Step 2: Convert to fraction form
    83,488.80/115,214.28 = 45,249.48/x
  3. Step 3: Cross multiply
    83,488.80x = 115,214.28 × 45,249.48
  4. Step 4: Simplify right side
    83,488.80x = 5,213,386,258.57
  5. Step 5: Solve for x
    x = 5,213,386,258.57/83,488.80
  6. Step 6: Final answer
    x = 62,444.14

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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.