Home / 84,695.20-127,124.86-45,280.04

Finding the Fourth Proportional to 84,695.20, 127,124.86 and 45,280.04

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Solution

The fourth proportional to 84,695.20, 127,124.86 and 45,280.04 is: 67,963.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,695.20 : 127,124.86 = 45,280.04 : x
  2. Step 2: Convert to fraction form
    84,695.20/127,124.86 = 45,280.04/x
  3. Step 3: Cross multiply
    84,695.20x = 127,124.86 × 45,280.04
  4. Step 4: Simplify right side
    84,695.20x = 5,756,218,745.79
  5. Step 5: Solve for x
    x = 5,756,218,745.79/84,695.20
  6. Step 6: Final answer
    x = 67,963.93

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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.