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Finding the Fourth Proportional to 83,550.81, 124,458.02 and 79,023.72

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Solution

The fourth proportional to 83,550.81, 124,458.02 and 79,023.72 is: 117,714.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,550.81 : 124,458.02 = 79,023.72 : x
  2. Step 2: Convert to fraction form
    83,550.81/124,458.02 = 79,023.72/x
  3. Step 3: Cross multiply
    83,550.81x = 124,458.02 × 79,023.72
  4. Step 4: Simplify right side
    83,550.81x = 9,835,135,724.23
  5. Step 5: Solve for x
    x = 9,835,135,724.23/83,550.81
  6. Step 6: Final answer
    x = 117,714.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.