Home / 78,966.93-108,979.64-44,520.17

Finding the Fourth Proportional to 78,966.93, 108,979.64 and 44,520.17

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Solution

The fourth proportional to 78,966.93, 108,979.64 and 44,520.17 is: 61,440.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,966.93 : 108,979.64 = 44,520.17 : x
  2. Step 2: Convert to fraction form
    78,966.93/108,979.64 = 44,520.17/x
  3. Step 3: Cross multiply
    78,966.93x = 108,979.64 × 44,520.17
  4. Step 4: Simplify right side
    78,966.93x = 4,851,791,331.84
  5. Step 5: Solve for x
    x = 4,851,791,331.84/78,966.93
  6. Step 6: Final answer
    x = 61,440.80

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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.