Home / 78,721.17-108,638.14-44,735.41

Finding the Fourth Proportional to 78,721.17, 108,638.14 and 44,735.41

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Solution

The fourth proportional to 78,721.17, 108,638.14 and 44,735.41 is: 61,736.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,721.17 : 108,638.14 = 44,735.41 : x
  2. Step 2: Convert to fraction form
    78,721.17/108,638.14 = 44,735.41/x
  3. Step 3: Cross multiply
    78,721.17x = 108,638.14 × 44,735.41
  4. Step 4: Simplify right side
    78,721.17x = 4,859,972,022.10
  5. Step 5: Solve for x
    x = 4,859,972,022.10/78,721.17
  6. Step 6: Final answer
    x = 61,736.53

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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.