Home / 85,106.32-127,659.42-38,304.52

Finding the Fourth Proportional to 85,106.32, 127,659.42 and 38,304.52

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Solution

The fourth proportional to 85,106.32, 127,659.42 and 38,304.52 is: 57,456.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,106.32 : 127,659.42 = 38,304.52 : x
  2. Step 2: Convert to fraction form
    85,106.32/127,659.42 = 38,304.52/x
  3. Step 3: Cross multiply
    85,106.32x = 127,659.42 × 38,304.52
  4. Step 4: Simplify right side
    85,106.32x = 4,889,932,806.58
  5. Step 5: Solve for x
    x = 4,889,932,806.58/85,106.32
  6. Step 6: Final answer
    x = 57,456.75

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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.