Home / 84,702.32-127,049.84-28,538.72

Finding the Fourth Proportional to 84,702.32, 127,049.84 and 28,538.72

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Solution

The fourth proportional to 84,702.32, 127,049.84 and 28,538.72 is: 42,806.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,702.32 : 127,049.84 = 28,538.72 : x
  2. Step 2: Convert to fraction form
    84,702.32/127,049.84 = 28,538.72/x
  3. Step 3: Cross multiply
    84,702.32x = 127,049.84 × 28,538.72
  4. Step 4: Simplify right side
    84,702.32x = 3,625,839,809.80
  5. Step 5: Solve for x
    x = 3,625,839,809.80/84,702.32
  6. Step 6: Final answer
    x = 42,806.85

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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.