Home / 88,931.90-122,724.32-48,645.54

Finding the Fourth Proportional to 88,931.90, 122,724.32 and 48,645.54

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Solution

The fourth proportional to 88,931.90, 122,724.32 and 48,645.54 is: 67,129.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,931.90 : 122,724.32 = 48,645.54 : x
  2. Step 2: Convert to fraction form
    88,931.90/122,724.32 = 48,645.54/x
  3. Step 3: Cross multiply
    88,931.90x = 122,724.32 × 48,645.54
  4. Step 4: Simplify right side
    88,931.90x = 5,969,990,817.53
  5. Step 5: Solve for x
    x = 5,969,990,817.53/88,931.90
  6. Step 6: Final answer
    x = 67,129.91

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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.