Home / 48,871.46-67,427.16-28,721.90

Finding the Fourth Proportional to 48,871.46, 67,427.16 and 28,721.90

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Solution

The fourth proportional to 48,871.46, 67,427.16 and 28,721.90 is: 39,627.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,871.46 : 67,427.16 = 28,721.90 : x
  2. Step 2: Convert to fraction form
    48,871.46/67,427.16 = 28,721.90/x
  3. Step 3: Cross multiply
    48,871.46x = 67,427.16 × 28,721.90
  4. Step 4: Simplify right side
    48,871.46x = 1,936,636,146.80
  5. Step 5: Solve for x
    x = 1,936,636,146.80/48,871.46
  6. Step 6: Final answer
    x = 39,627.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.