Home / 87,853.56-121,206.40-50,105.96

Finding the Fourth Proportional to 87,853.56, 121,206.40 and 50,105.96

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Solution

The fourth proportional to 87,853.56, 121,206.40 and 50,105.96 is: 69,128.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,853.56 : 121,206.40 = 50,105.96 : x
  2. Step 2: Convert to fraction form
    87,853.56/121,206.40 = 50,105.96/x
  3. Step 3: Cross multiply
    87,853.56x = 121,206.40 × 50,105.96
  4. Step 4: Simplify right side
    87,853.56x = 6,073,163,030.14
  5. Step 5: Solve for x
    x = 6,073,163,030.14/87,853.56
  6. Step 6: Final answer
    x = 69,128.25

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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.