Home / 48,115.50-66,428.55-31,377.66

Finding the Fourth Proportional to 48,115.50, 66,428.55 and 31,377.66

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Solution

The fourth proportional to 48,115.50, 66,428.55 and 31,377.66 is: 43,320.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,115.50 : 66,428.55 = 31,377.66 : x
  2. Step 2: Convert to fraction form
    48,115.50/66,428.55 = 31,377.66/x
  3. Step 3: Cross multiply
    48,115.50x = 66,428.55 × 31,377.66
  4. Step 4: Simplify right side
    48,115.50x = 2,084,372,456.19
  5. Step 5: Solve for x
    x = 2,084,372,456.19/48,115.50
  6. Step 6: Final answer
    x = 43,320.19

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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.