Home / 87,816.89-121,187.34-50,091.14

Finding the Fourth Proportional to 87,816.89, 121,187.34 and 50,091.14

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Solution

The fourth proportional to 87,816.89, 121,187.34 and 50,091.14 is: 69,125.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,816.89 : 121,187.34 = 50,091.14 : x
  2. Step 2: Convert to fraction form
    87,816.89/121,187.34 = 50,091.14/x
  3. Step 3: Cross multiply
    87,816.89x = 121,187.34 × 50,091.14
  4. Step 4: Simplify right side
    87,816.89x = 6,070,411,408.23
  5. Step 5: Solve for x
    x = 6,070,411,408.23/87,816.89
  6. Step 6: Final answer
    x = 69,125.79

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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.