Home / 83,686.83-125,530.14-21,357.33

Finding the Fourth Proportional to 83,686.83, 125,530.14 and 21,357.33

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Solution

The fourth proportional to 83,686.83, 125,530.14 and 21,357.33 is: 32,035.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,686.83 : 125,530.14 = 21,357.33 : x
  2. Step 2: Convert to fraction form
    83,686.83/125,530.14 = 21,357.33/x
  3. Step 3: Cross multiply
    83,686.83x = 125,530.14 × 21,357.33
  4. Step 4: Simplify right side
    83,686.83x = 2,680,988,624.93
  5. Step 5: Solve for x
    x = 2,680,988,624.93/83,686.83
  6. Step 6: Final answer
    x = 32,035.97

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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.