Home / 83,830.19-125,743.46-39,432.33

Finding the Fourth Proportional to 83,830.19, 125,743.46 and 39,432.33

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Solution

The fourth proportional to 83,830.19, 125,743.46 and 39,432.33 is: 59,147.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,830.19 : 125,743.46 = 39,432.33 : x
  2. Step 2: Convert to fraction form
    83,830.19/125,743.46 = 39,432.33/x
  3. Step 3: Cross multiply
    83,830.19x = 125,743.46 × 39,432.33
  4. Step 4: Simplify right side
    83,830.19x = 4,958,357,412.90
  5. Step 5: Solve for x
    x = 4,958,357,412.90/83,830.19
  6. Step 6: Final answer
    x = 59,147.64

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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.