Home / 84,038.28-126,057.44-21,708.80

Finding the Fourth Proportional to 84,038.28, 126,057.44 and 21,708.80

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Solution

The fourth proportional to 84,038.28, 126,057.44 and 21,708.80 is: 32,563.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,038.28 : 126,057.44 = 21,708.80 : x
  2. Step 2: Convert to fraction form
    84,038.28/126,057.44 = 21,708.80/x
  3. Step 3: Cross multiply
    84,038.28x = 126,057.44 × 21,708.80
  4. Step 4: Simplify right side
    84,038.28x = 2,736,555,753.47
  5. Step 5: Solve for x
    x = 2,736,555,753.47/84,038.28
  6. Step 6: Final answer
    x = 32,563.21

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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.