Home / 84,806.28-127,188.86-25,646.72

Finding the Fourth Proportional to 84,806.28, 127,188.86 and 25,646.72

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Solution

The fourth proportional to 84,806.28, 127,188.86 and 25,646.72 is: 38,463.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,806.28 : 127,188.86 = 25,646.72 : x
  2. Step 2: Convert to fraction form
    84,806.28/127,188.86 = 25,646.72/x
  3. Step 3: Cross multiply
    84,806.28x = 127,188.86 × 25,646.72
  4. Step 4: Simplify right side
    84,806.28x = 3,261,976,315.36
  5. Step 5: Solve for x
    x = 3,261,976,315.36/84,806.28
  6. Step 6: Final answer
    x = 38,463.85

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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.