Home / 78,844.45-108,829.47-48,639.19

Finding the Fourth Proportional to 78,844.45, 108,829.47 and 48,639.19

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Solution

The fourth proportional to 78,844.45, 108,829.47 and 48,639.19 is: 67,136.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,844.45 : 108,829.47 = 48,639.19 : x
  2. Step 2: Convert to fraction form
    78,844.45/108,829.47 = 48,639.19/x
  3. Step 3: Cross multiply
    78,844.45x = 108,829.47 × 48,639.19
  4. Step 4: Simplify right side
    78,844.45x = 5,293,376,724.78
  5. Step 5: Solve for x
    x = 5,293,376,724.78/78,844.45
  6. Step 6: Final answer
    x = 67,136.96

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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.