Home / 84,972.28-127,378.70-28,773.16

Finding the Fourth Proportional to 84,972.28, 127,378.70 and 28,773.16

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Solution

The fourth proportional to 84,972.28, 127,378.70 and 28,773.16 is: 43,132.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,972.28 : 127,378.70 = 28,773.16 : x
  2. Step 2: Convert to fraction form
    84,972.28/127,378.70 = 28,773.16/x
  3. Step 3: Cross multiply
    84,972.28x = 127,378.70 × 28,773.16
  4. Step 4: Simplify right side
    84,972.28x = 3,665,087,715.69
  5. Step 5: Solve for x
    x = 3,665,087,715.69/84,972.28
  6. Step 6: Final answer
    x = 43,132.75

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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.