Home / 77,740.02-107,286.68-43,751.78

Finding the Fourth Proportional to 77,740.02, 107,286.68 and 43,751.78

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Solution

The fourth proportional to 77,740.02, 107,286.68 and 43,751.78 is: 60,380.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,740.02 : 107,286.68 = 43,751.78 : x
  2. Step 2: Convert to fraction form
    77,740.02/107,286.68 = 43,751.78/x
  3. Step 3: Cross multiply
    77,740.02x = 107,286.68 × 43,751.78
  4. Step 4: Simplify right side
    77,740.02x = 4,693,983,220.29
  5. Step 5: Solve for x
    x = 4,693,983,220.29/77,740.02
  6. Step 6: Final answer
    x = 60,380.52

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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.