Home / 88,316.53-121,917.05-58,103.12

Finding the Fourth Proportional to 88,316.53, 121,917.05 and 58,103.12

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Solution

The fourth proportional to 88,316.53, 121,917.05 and 58,103.12 is: 80,208.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,316.53 : 121,917.05 = 58,103.12 : x
  2. Step 2: Convert to fraction form
    88,316.53/121,917.05 = 58,103.12/x
  3. Step 3: Cross multiply
    88,316.53x = 121,917.05 × 58,103.12
  4. Step 4: Simplify right side
    88,316.53x = 7,083,761,218.36
  5. Step 5: Solve for x
    x = 7,083,761,218.36/88,316.53
  6. Step 6: Final answer
    x = 80,208.78

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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.