Home / 88,133.28-121,625.19-47,847.12

Finding the Fourth Proportional to 88,133.28, 121,625.19 and 47,847.12

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Solution

The fourth proportional to 88,133.28, 121,625.19 and 47,847.12 is: 66,029.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,133.28 : 121,625.19 = 47,847.12 : x
  2. Step 2: Convert to fraction form
    88,133.28/121,625.19 = 47,847.12/x
  3. Step 3: Cross multiply
    88,133.28x = 121,625.19 × 47,847.12
  4. Step 4: Simplify right side
    88,133.28x = 5,819,415,060.95
  5. Step 5: Solve for x
    x = 5,819,415,060.95/88,133.28
  6. Step 6: Final answer
    x = 66,029.71

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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.