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Finding the Fourth Proportional to 78,335.69, 108,077.49 and 44,340.80

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Solution

The fourth proportional to 78,335.69, 108,077.49 and 44,340.80 is: 61,175.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,335.69 : 108,077.49 = 44,340.80 : x
  2. Step 2: Convert to fraction form
    78,335.69/108,077.49 = 44,340.80/x
  3. Step 3: Cross multiply
    78,335.69x = 108,077.49 × 44,340.80
  4. Step 4: Simplify right side
    78,335.69x = 4,792,241,828.20
  5. Step 5: Solve for x
    x = 4,792,241,828.20/78,335.69
  6. Step 6: Final answer
    x = 61,175.72

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1.5x scale

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.