Home / 77,748.54-107,293.43-43,757.70

Finding the Fourth Proportional to 77,748.54, 107,293.43 and 43,757.70

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Solution

The fourth proportional to 77,748.54, 107,293.43 and 43,757.70 is: 60,385.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,748.54 : 107,293.43 = 43,757.70 : x
  2. Step 2: Convert to fraction form
    77,748.54/107,293.43 = 43,757.70/x
  3. Step 3: Cross multiply
    77,748.54x = 107,293.43 × 43,757.70
  4. Step 4: Simplify right side
    77,748.54x = 4,694,913,721.91
  5. Step 5: Solve for x
    x = 4,694,913,721.91/77,748.54
  6. Step 6: Final answer
    x = 60,385.88

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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.