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Finding the Fourth Proportional to 55,449.48, 83,191.98 and 19,886.84

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Solution

The fourth proportional to 55,449.48, 83,191.98 and 19,886.84 is: 29,836.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,449.48 : 83,191.98 = 19,886.84 : x
  2. Step 2: Convert to fraction form
    55,449.48/83,191.98 = 19,886.84/x
  3. Step 3: Cross multiply
    55,449.48x = 83,191.98 × 19,886.84
  4. Step 4: Simplify right side
    55,449.48x = 1,654,425,595.54
  5. Step 5: Solve for x
    x = 1,654,425,595.54/55,449.48
  6. Step 6: Final answer
    x = 29,836.63

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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.