Home / 88,939.28-122,767.12-51,228.56

Finding the Fourth Proportional to 88,939.28, 122,767.12 and 51,228.56

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Solution

The fourth proportional to 88,939.28, 122,767.12 and 51,228.56 is: 70,713.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,939.28 : 122,767.12 = 51,228.56 : x
  2. Step 2: Convert to fraction form
    88,939.28/122,767.12 = 51,228.56/x
  3. Step 3: Cross multiply
    88,939.28x = 122,767.12 × 51,228.56
  4. Step 4: Simplify right side
    88,939.28x = 6,289,182,772.95
  5. Step 5: Solve for x
    x = 6,289,182,772.95/88,939.28
  6. Step 6: Final answer
    x = 70,713.22

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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.