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Finding the Fourth Proportional to 47,982.81, 71,888.03 and 28,250.61

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Solution

The fourth proportional to 47,982.81, 71,888.03 and 28,250.61 is: 42,325.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,982.81 : 71,888.03 = 28,250.61 : x
  2. Step 2: Convert to fraction form
    47,982.81/71,888.03 = 28,250.61/x
  3. Step 3: Cross multiply
    47,982.81x = 71,888.03 × 28,250.61
  4. Step 4: Simplify right side
    47,982.81x = 2,030,880,394.30
  5. Step 5: Solve for x
    x = 2,030,880,394.30/47,982.81
  6. Step 6: Final answer
    x = 42,325.16

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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.