Home / 80,258.07-110,719.39-51,972.87

Finding the Fourth Proportional to 80,258.07, 110,719.39 and 51,972.87

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Solution

The fourth proportional to 80,258.07, 110,719.39 and 51,972.87 is: 71,698.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,258.07 : 110,719.39 = 51,972.87 : x
  2. Step 2: Convert to fraction form
    80,258.07/110,719.39 = 51,972.87/x
  3. Step 3: Cross multiply
    80,258.07x = 110,719.39 × 51,972.87
  4. Step 4: Simplify right side
    80,258.07x = 5,754,404,462.95
  5. Step 5: Solve for x
    x = 5,754,404,462.95/80,258.07
  6. Step 6: Final answer
    x = 71,698.76

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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.