Home / 90,998.70-125,576.31-50,712.30

Finding the Fourth Proportional to 90,998.70, 125,576.31 and 50,712.30

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Solution

The fourth proportional to 90,998.70, 125,576.31 and 50,712.30 is: 69,981.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,998.70 : 125,576.31 = 50,712.30 : x
  2. Step 2: Convert to fraction form
    90,998.70/125,576.31 = 50,712.30/x
  3. Step 3: Cross multiply
    90,998.70x = 125,576.31 × 50,712.30
  4. Step 4: Simplify right side
    90,998.70x = 6,368,263,505.61
  5. Step 5: Solve for x
    x = 6,368,263,505.61/90,998.70
  6. Step 6: Final answer
    x = 69,981.92

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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.