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Finding the Fourth Proportional to 54,988.47, 82,482.71 and 15,540.46

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Solution

The fourth proportional to 54,988.47, 82,482.71 and 15,540.46 is: 23,310.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,988.47 : 82,482.71 = 15,540.46 : x
  2. Step 2: Convert to fraction form
    54,988.47/82,482.71 = 15,540.46/x
  3. Step 3: Cross multiply
    54,988.47x = 82,482.71 × 15,540.46
  4. Step 4: Simplify right side
    54,988.47x = 1,281,818,971.54
  5. Step 5: Solve for x
    x = 1,281,818,971.54/54,988.47
  6. Step 6: Final answer
    x = 23,310.69

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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.