Home / 85,218.28-127,843.82-38,471.16

Finding the Fourth Proportional to 85,218.28, 127,843.82 and 38,471.16

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Solution

The fourth proportional to 85,218.28, 127,843.82 and 38,471.16 is: 57,714.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,218.28 : 127,843.82 = 38,471.16 : x
  2. Step 2: Convert to fraction form
    85,218.28/127,843.82 = 38,471.16/x
  3. Step 3: Cross multiply
    85,218.28x = 127,843.82 × 38,471.16
  4. Step 4: Simplify right side
    85,218.28x = 4,918,300,054.23
  5. Step 5: Solve for x
    x = 4,918,300,054.23/85,218.28
  6. Step 6: Final answer
    x = 57,714.14

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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.