Home / 84,002.52-126,006.20-21,673

Finding the Fourth Proportional to 84,002.52, 126,006.20 and 21,673

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Solution

The fourth proportional to 84,002.52, 126,006.20 and 21,673 is: 32,510.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,002.52 : 126,006.20 = 21,673 : x
  2. Step 2: Convert to fraction form
    84,002.52/126,006.20 = 21,673/x
  3. Step 3: Cross multiply
    84,002.52x = 126,006.20 × 21,673
  4. Step 4: Simplify right side
    84,002.52x = 2,730,932,372.60
  5. Step 5: Solve for x
    x = 2,730,932,372.60/84,002.52
  6. Step 6: Final answer
    x = 32,510.12

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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.