Home / 85,901.29-118,543.66-48,175.21

Finding the Fourth Proportional to 85,901.29, 118,543.66 and 48,175.21

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Solution

The fourth proportional to 85,901.29, 118,543.66 and 48,175.21 is: 66,481.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,901.29 : 118,543.66 = 48,175.21 : x
  2. Step 2: Convert to fraction form
    85,901.29/118,543.66 = 48,175.21/x
  3. Step 3: Cross multiply
    85,901.29x = 118,543.66 × 48,175.21
  4. Step 4: Simplify right side
    85,901.29x = 5,710,865,714.67
  5. Step 5: Solve for x
    x = 5,710,865,714.67/85,901.29
  6. Step 6: Final answer
    x = 66,481.72

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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.