Home / 86,065.13-118,781.01-48,339.38

Finding the Fourth Proportional to 86,065.13, 118,781.01 and 48,339.38

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Solution

The fourth proportional to 86,065.13, 118,781.01 and 48,339.38 is: 66,714.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,065.13 : 118,781.01 = 48,339.38 : x
  2. Step 2: Convert to fraction form
    86,065.13/118,781.01 = 48,339.38/x
  3. Step 3: Cross multiply
    86,065.13x = 118,781.01 × 48,339.38
  4. Step 4: Simplify right side
    86,065.13x = 5,741,799,785.27
  5. Step 5: Solve for x
    x = 5,741,799,785.27/86,065.13
  6. Step 6: Final answer
    x = 66,714.59

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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.