Home / 78,440.75-108,246.36-43,983.19

Finding the Fourth Proportional to 78,440.75, 108,246.36 and 43,983.19

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Solution

The fourth proportional to 78,440.75, 108,246.36 and 43,983.19 is: 60,695.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,440.75 : 108,246.36 = 43,983.19 : x
  2. Step 2: Convert to fraction form
    78,440.75/108,246.36 = 43,983.19/x
  3. Step 3: Cross multiply
    78,440.75x = 108,246.36 × 43,983.19
  4. Step 4: Simplify right side
    78,440.75x = 4,761,020,218.69
  5. Step 5: Solve for x
    x = 4,761,020,218.69/78,440.75
  6. Step 6: Final answer
    x = 60,695.75

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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.