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Finding the Fourth Proportional to 84,085.52, 126,113.16 and 21,752.24

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Solution

The fourth proportional to 84,085.52, 126,113.16 and 21,752.24 is: 32,624.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,085.52 : 126,113.16 = 21,752.24 : x
  2. Step 2: Convert to fraction form
    84,085.52/126,113.16 = 21,752.24/x
  3. Step 3: Cross multiply
    84,085.52x = 126,113.16 × 21,752.24
  4. Step 4: Simplify right side
    84,085.52x = 2,743,243,723.48
  5. Step 5: Solve for x
    x = 2,743,243,723.48/84,085.52
  6. Step 6: Final answer
    x = 32,624.45

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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.