Home / 85,839.75-118,466.15-48,121.29

Finding the Fourth Proportional to 85,839.75, 118,466.15 and 48,121.29

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Solution

The fourth proportional to 85,839.75, 118,466.15 and 48,121.29 is: 66,411.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,839.75 : 118,466.15 = 48,121.29 : x
  2. Step 2: Convert to fraction form
    85,839.75/118,466.15 = 48,121.29/x
  3. Step 3: Cross multiply
    85,839.75x = 118,466.15 × 48,121.29
  4. Step 4: Simplify right side
    85,839.75x = 5,700,743,718.73
  5. Step 5: Solve for x
    x = 5,700,743,718.73/85,839.75
  6. Step 6: Final answer
    x = 66,411.47

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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.