Home / 81,512.40-122,087.96-62,653.60

Finding the Fourth Proportional to 81,512.40, 122,087.96 and 62,653.60

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Solution

The fourth proportional to 81,512.40, 122,087.96 and 62,653.60 is: 93,841.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,512.40 : 122,087.96 = 62,653.60 : x
  2. Step 2: Convert to fraction form
    81,512.40/122,087.96 = 62,653.60/x
  3. Step 3: Cross multiply
    81,512.40x = 122,087.96 × 62,653.60
  4. Step 4: Simplify right side
    81,512.40x = 7,649,250,210.66
  5. Step 5: Solve for x
    x = 7,649,250,210.66/81,512.40
  6. Step 6: Final answer
    x = 93,841.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.