Home / 82,869.60-124,322.40-30,279

Finding the Fourth Proportional to 82,869.60, 124,322.40 and 30,279

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Solution

The fourth proportional to 82,869.60, 124,322.40 and 30,279 is: 45,425.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,869.60 : 124,322.40 = 30,279 : x
  2. Step 2: Convert to fraction form
    82,869.60/124,322.40 = 30,279/x
  3. Step 3: Cross multiply
    82,869.60x = 124,322.40 × 30,279
  4. Step 4: Simplify right side
    82,869.60x = 3,764,357,949.60
  5. Step 5: Solve for x
    x = 3,764,357,949.60/82,869.60
  6. Step 6: Final answer
    x = 45,425.08

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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.