Home / 85,248.27-127,756.67-45,257.15

Finding the Fourth Proportional to 85,248.27, 127,756.67 and 45,257.15

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Solution

The fourth proportional to 85,248.27, 127,756.67 and 45,257.15 is: 67,824.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,248.27 : 127,756.67 = 45,257.15 : x
  2. Step 2: Convert to fraction form
    85,248.27/127,756.67 = 45,257.15/x
  3. Step 3: Cross multiply
    85,248.27x = 127,756.67 × 45,257.15
  4. Step 4: Simplify right side
    85,248.27x = 5,781,901,912.62
  5. Step 5: Solve for x
    x = 5,781,901,912.62/85,248.27
  6. Step 6: Final answer
    x = 67,824.27

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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.