Home / 82,928.60-124,425.30-30,342.20

Finding the Fourth Proportional to 82,928.60, 124,425.30 and 30,342.20

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Solution

The fourth proportional to 82,928.60, 124,425.30 and 30,342.20 is: 45,525.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,928.60 : 124,425.30 = 30,342.20 : x
  2. Step 2: Convert to fraction form
    82,928.60/124,425.30 = 30,342.20/x
  3. Step 3: Cross multiply
    82,928.60x = 124,425.30 × 30,342.20
  4. Step 4: Simplify right side
    82,928.60x = 3,775,337,337.66
  5. Step 5: Solve for x
    x = 3,775,337,337.66/82,928.60
  6. Step 6: Final answer
    x = 45,525.15

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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.