Home / 85,231.19-127,877.95-39,660.62

Finding the Fourth Proportional to 85,231.19, 127,877.95 and 39,660.62

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Solution

The fourth proportional to 85,231.19, 127,877.95 and 39,660.62 is: 59,505.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,231.19 : 127,877.95 = 39,660.62 : x
  2. Step 2: Convert to fraction form
    85,231.19/127,877.95 = 39,660.62/x
  3. Step 3: Cross multiply
    85,231.19x = 127,877.95 × 39,660.62
  4. Step 4: Simplify right side
    85,231.19x = 5,071,718,781.33
  5. Step 5: Solve for x
    x = 5,071,718,781.33/85,231.19
  6. Step 6: Final answer
    x = 59,505.44

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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.