Home / 91,077.70-125,785.24-69,335.51

Finding the Fourth Proportional to 91,077.70, 125,785.24 and 69,335.51

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Solution

The fourth proportional to 91,077.70, 125,785.24 and 69,335.51 is: 95,757.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,077.70 : 125,785.24 = 69,335.51 : x
  2. Step 2: Convert to fraction form
    91,077.70/125,785.24 = 69,335.51/x
  3. Step 3: Cross multiply
    91,077.70x = 125,785.24 × 69,335.51
  4. Step 4: Simplify right side
    91,077.70x = 8,721,383,765.87
  5. Step 5: Solve for x
    x = 8,721,383,765.87/91,077.70
  6. Step 6: Final answer
    x = 95,757.62

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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.