Home / 83,685.56-125,549.58-38,739.32

Finding the Fourth Proportional to 83,685.56, 125,549.58 and 38,739.32

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Solution

The fourth proportional to 83,685.56, 125,549.58 and 38,739.32 is: 58,118.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,685.56 : 125,549.58 = 38,739.32 : x
  2. Step 2: Convert to fraction form
    83,685.56/125,549.58 = 38,739.32/x
  3. Step 3: Cross multiply
    83,685.56x = 125,549.58 × 38,739.32
  4. Step 4: Simplify right side
    83,685.56x = 4,863,704,727.74
  5. Step 5: Solve for x
    x = 4,863,704,727.74/83,685.56
  6. Step 6: Final answer
    x = 58,118.81

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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.