Home / 86,049.40-118,728.78-48,321.16

Finding the Fourth Proportional to 86,049.40, 118,728.78 and 48,321.16

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Solution

The fourth proportional to 86,049.40, 118,728.78 and 48,321.16 is: 66,672.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,049.40 : 118,728.78 = 48,321.16 : x
  2. Step 2: Convert to fraction form
    86,049.40/118,728.78 = 48,321.16/x
  3. Step 3: Cross multiply
    86,049.40x = 118,728.78 × 48,321.16
  4. Step 4: Simplify right side
    86,049.40x = 5,737,112,374.98
  5. Step 5: Solve for x
    x = 5,737,112,374.98/86,049.40
  6. Step 6: Final answer
    x = 66,672.31

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1.5x scale

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.