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Finding the Fourth Proportional to 55,649.73, 83,487.84 and 18,209.91

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Solution

The fourth proportional to 55,649.73, 83,487.84 and 18,209.91 is: 27,319.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,649.73 : 83,487.84 = 18,209.91 : x
  2. Step 2: Convert to fraction form
    55,649.73/83,487.84 = 18,209.91/x
  3. Step 3: Cross multiply
    55,649.73x = 83,487.84 × 18,209.91
  4. Step 4: Simplify right side
    55,649.73x = 1,520,306,052.49
  5. Step 5: Solve for x
    x = 1,520,306,052.49/55,649.73
  6. Step 6: Final answer
    x = 27,319.20

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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.