Home / 77,502.20-115,961.70-51,258.20

Finding the Fourth Proportional to 77,502.20, 115,961.70 and 51,258.20

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Solution

The fourth proportional to 77,502.20, 115,961.70 and 51,258.20 is: 76,694.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,502.20 : 115,961.70 = 51,258.20 : x
  2. Step 2: Convert to fraction form
    77,502.20/115,961.70 = 51,258.20/x
  3. Step 3: Cross multiply
    77,502.20x = 115,961.70 × 51,258.20
  4. Step 4: Simplify right side
    77,502.20x = 5,943,988,010.94
  5. Step 5: Solve for x
    x = 5,943,988,010.94/77,502.20
  6. Step 6: Final answer
    x = 76,694.44

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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.