Home / 83,400.05-124,953.66-69,449.82

Finding the Fourth Proportional to 83,400.05, 124,953.66 and 69,449.82

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Solution

The fourth proportional to 83,400.05, 124,953.66 and 69,449.82 is: 104,052.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,400.05 : 124,953.66 = 69,449.82 : x
  2. Step 2: Convert to fraction form
    83,400.05/124,953.66 = 69,449.82/x
  3. Step 3: Cross multiply
    83,400.05x = 124,953.66 × 69,449.82
  4. Step 4: Simplify right side
    83,400.05x = 8,678,009,195.34
  5. Step 5: Solve for x
    x = 8,678,009,195.34/83,400.05
  6. Step 6: Final answer
    x = 104,052.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.