Home / 48,678.85-67,171.06-28,256.18

Finding the Fourth Proportional to 48,678.85, 67,171.06 and 28,256.18

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Solution

The fourth proportional to 48,678.85, 67,171.06 and 28,256.18 is: 38,990.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,678.85 : 67,171.06 = 28,256.18 : x
  2. Step 2: Convert to fraction form
    48,678.85/67,171.06 = 28,256.18/x
  3. Step 3: Cross multiply
    48,678.85x = 67,171.06 × 28,256.18
  4. Step 4: Simplify right side
    48,678.85x = 1,897,997,562.15
  5. Step 5: Solve for x
    x = 1,897,997,562.15/48,678.85
  6. Step 6: Final answer
    x = 38,990.19

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1.5x scale

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.