Home / 68,772.12-103,626.78-56,565.60

Finding the Fourth Proportional to 68,772.12, 103,626.78 and 56,565.60

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Solution

The fourth proportional to 68,772.12, 103,626.78 and 56,565.60 is: 85,233.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,772.12 : 103,626.78 = 56,565.60 : x
  2. Step 2: Convert to fraction form
    68,772.12/103,626.78 = 56,565.60/x
  3. Step 3: Cross multiply
    68,772.12x = 103,626.78 × 56,565.60
  4. Step 4: Simplify right side
    68,772.12x = 5,861,710,986.77
  5. Step 5: Solve for x
    x = 5,861,710,986.77/68,772.12
  6. Step 6: Final answer
    x = 85,233.83

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.