Home / 84,760.26-127,158.60-28,601.76

Finding the Fourth Proportional to 84,760.26, 127,158.60 and 28,601.76

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Solution

The fourth proportional to 84,760.26, 127,158.60 and 28,601.76 is: 42,908.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,760.26 : 127,158.60 = 28,601.76 : x
  2. Step 2: Convert to fraction form
    84,760.26/127,158.60 = 28,601.76/x
  3. Step 3: Cross multiply
    84,760.26x = 127,158.60 × 28,601.76
  4. Step 4: Simplify right side
    84,760.26x = 3,636,959,759.14
  5. Step 5: Solve for x
    x = 3,636,959,759.14/84,760.26
  6. Step 6: Final answer
    x = 42,908.78

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1.5x scale

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.