Home / 88,083.28-121,655.92-58,003.12

Finding the Fourth Proportional to 88,083.28, 121,655.92 and 58,003.12

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Solution

The fourth proportional to 88,083.28, 121,655.92 and 58,003.12 is: 80,110.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,083.28 : 121,655.92 = 58,003.12 : x
  2. Step 2: Convert to fraction form
    88,083.28/121,655.92 = 58,003.12/x
  3. Step 3: Cross multiply
    88,083.28x = 121,655.92 × 58,003.12
  4. Step 4: Simplify right side
    88,083.28x = 7,056,422,926.47
  5. Step 5: Solve for x
    x = 7,056,422,926.47/88,083.28
  6. Step 6: Final answer
    x = 80,110.81

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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.