Home / 85,821.75-118,441.31-48,103.29

Finding the Fourth Proportional to 85,821.75, 118,441.31 and 48,103.29

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Solution

The fourth proportional to 85,821.75, 118,441.31 and 48,103.29 is: 66,386.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,821.75 : 118,441.31 = 48,103.29 : x
  2. Step 2: Convert to fraction form
    85,821.75/118,441.31 = 48,103.29/x
  3. Step 3: Cross multiply
    85,821.75x = 118,441.31 × 48,103.29
  4. Step 4: Simplify right side
    85,821.75x = 5,697,416,442.39
  5. Step 5: Solve for x
    x = 5,697,416,442.39/85,821.75
  6. Step 6: Final answer
    x = 66,386.63

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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.