Home / 77,080.29-115,648.79-55,066.92

Finding the Fourth Proportional to 77,080.29, 115,648.79 and 55,066.92

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Solution

The fourth proportional to 77,080.29, 115,648.79 and 55,066.92 is: 82,620.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,080.29 : 115,648.79 = 55,066.92 : x
  2. Step 2: Convert to fraction form
    77,080.29/115,648.79 = 55,066.92/x
  3. Step 3: Cross multiply
    77,080.29x = 115,648.79 × 55,066.92
  4. Step 4: Simplify right side
    77,080.29x = 6,368,422,391.69
  5. Step 5: Solve for x
    x = 6,368,422,391.69/77,080.29
  6. Step 6: Final answer
    x = 82,620.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.