Home / 84,895.20-127,342.80-40,499.10

Finding the Fourth Proportional to 84,895.20, 127,342.80 and 40,499.10

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Solution

The fourth proportional to 84,895.20, 127,342.80 and 40,499.10 is: 60,748.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,895.20 : 127,342.80 = 40,499.10 : x
  2. Step 2: Convert to fraction form
    84,895.20/127,342.80 = 40,499.10/x
  3. Step 3: Cross multiply
    84,895.20x = 127,342.80 × 40,499.10
  4. Step 4: Simplify right side
    84,895.20x = 5,157,268,791.48
  5. Step 5: Solve for x
    x = 5,157,268,791.48/84,895.20
  6. Step 6: Final answer
    x = 60,748.65

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Similar ratio
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1.5x scale

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.