Home / 79,936.71-110,312.85-43,638.18

Finding the Fourth Proportional to 79,936.71, 110,312.85 and 43,638.18

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Solution

The fourth proportional to 79,936.71, 110,312.85 and 43,638.18 is: 60,220.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,936.71 : 110,312.85 = 43,638.18 : x
  2. Step 2: Convert to fraction form
    79,936.71/110,312.85 = 43,638.18/x
  3. Step 3: Cross multiply
    79,936.71x = 110,312.85 × 43,638.18
  4. Step 4: Simplify right side
    79,936.71x = 4,813,852,004.61
  5. Step 5: Solve for x
    x = 4,813,852,004.61/79,936.71
  6. Step 6: Final answer
    x = 60,220.79

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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.