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Finding the Fourth Proportional to 84,510.88, 126,584.08 and 79,542.46

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Solution

The fourth proportional to 84,510.88, 126,584.08 and 79,542.46 is: 119,142.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,510.88 : 126,584.08 = 79,542.46 : x
  2. Step 2: Convert to fraction form
    84,510.88/126,584.08 = 79,542.46/x
  3. Step 3: Cross multiply
    84,510.88x = 126,584.08 × 79,542.46
  4. Step 4: Simplify right side
    84,510.88x = 10,068,809,120.04
  5. Step 5: Solve for x
    x = 10,068,809,120.04/84,510.88
  6. Step 6: Final answer
    x = 119,142.16

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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.