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Finding the Fourth Proportional to 78,838.33, 108,797.19 and 43,029.13

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Solution

The fourth proportional to 78,838.33, 108,797.19 and 43,029.13 is: 59,380.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,838.33 : 108,797.19 = 43,029.13 : x
  2. Step 2: Convert to fraction form
    78,838.33/108,797.19 = 43,029.13/x
  3. Step 3: Cross multiply
    78,838.33x = 108,797.19 × 43,029.13
  4. Step 4: Simplify right side
    78,838.33x = 4,681,448,432.14
  5. Step 5: Solve for x
    x = 4,681,448,432.14/78,838.33
  6. Step 6: Final answer
    x = 59,380.36

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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.