Home / 77,542.97-115,789.20-61,568.76

Finding the Fourth Proportional to 77,542.97, 115,789.20 and 61,568.76

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Solution

The fourth proportional to 77,542.97, 115,789.20 and 61,568.76 is: 91,936.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,542.97 : 115,789.20 = 61,568.76 : x
  2. Step 2: Convert to fraction form
    77,542.97/115,789.20 = 61,568.76/x
  3. Step 3: Cross multiply
    77,542.97x = 115,789.20 × 61,568.76
  4. Step 4: Simplify right side
    77,542.97x = 7,128,997,017.40
  5. Step 5: Solve for x
    x = 7,128,997,017.40/77,542.97
  6. Step 6: Final answer
    x = 91,936.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.