Home / 48,310.66-66,669.40-29,187.78

Finding the Fourth Proportional to 48,310.66, 66,669.40 and 29,187.78

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Solution

The fourth proportional to 48,310.66, 66,669.40 and 29,187.78 is: 40,279.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,310.66 : 66,669.40 = 29,187.78 : x
  2. Step 2: Convert to fraction form
    48,310.66/66,669.40 = 29,187.78/x
  3. Step 3: Cross multiply
    48,310.66x = 66,669.40 × 29,187.78
  4. Step 4: Simplify right side
    48,310.66x = 1,945,931,566.41
  5. Step 5: Solve for x
    x = 1,945,931,566.41/48,310.66
  6. Step 6: Final answer
    x = 40,279.55

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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.