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Finding the Fourth Proportional to 53,752.52, 80,663.90 and 20,472.91

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Solution

The fourth proportional to 53,752.52, 80,663.90 and 20,472.91 is: 30,722.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,752.52 : 80,663.90 = 20,472.91 : x
  2. Step 2: Convert to fraction form
    53,752.52/80,663.90 = 20,472.91/x
  3. Step 3: Cross multiply
    53,752.52x = 80,663.90 × 20,472.91
  4. Step 4: Simplify right side
    53,752.52x = 1,651,424,259.26
  5. Step 5: Solve for x
    x = 1,651,424,259.26/53,752.52
  6. Step 6: Final answer
    x = 30,722.73

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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.