Home / 88,091.28-121,666.96-58,011.12

Finding the Fourth Proportional to 88,091.28, 121,666.96 and 58,011.12

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Solution

The fourth proportional to 88,091.28, 121,666.96 and 58,011.12 is: 80,121.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,091.28 : 121,666.96 = 58,011.12 : x
  2. Step 2: Convert to fraction form
    88,091.28/121,666.96 = 58,011.12/x
  3. Step 3: Cross multiply
    88,091.28x = 121,666.96 × 58,011.12
  4. Step 4: Simplify right side
    88,091.28x = 7,058,036,616.60
  5. Step 5: Solve for x
    x = 7,058,036,616.60/88,091.28
  6. Step 6: Final answer
    x = 80,121.85

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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.