Home / 82,866.06-124,313.70-30,348.90

Finding the Fourth Proportional to 82,866.06, 124,313.70 and 30,348.90

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Solution

The fourth proportional to 82,866.06, 124,313.70 and 30,348.90 is: 45,528.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,866.06 : 124,313.70 = 30,348.90 : x
  2. Step 2: Convert to fraction form
    82,866.06/124,313.70 = 30,348.90/x
  3. Step 3: Cross multiply
    82,866.06x = 124,313.70 × 30,348.90
  4. Step 4: Simplify right side
    82,866.06x = 3,772,784,049.93
  5. Step 5: Solve for x
    x = 3,772,784,049.93/82,866.06
  6. Step 6: Final answer
    x = 45,528.70

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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.