Home / 87,804-121,169.52-50,090.40

Finding the Fourth Proportional to 87,804, 121,169.52 and 50,090.40

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Solution

The fourth proportional to 87,804, 121,169.52 and 50,090.40 is: 69,124.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,804 : 121,169.52 = 50,090.40 : x
  2. Step 2: Convert to fraction form
    87,804/121,169.52 = 50,090.40/x
  3. Step 3: Cross multiply
    87,804x = 121,169.52 × 50,090.40
  4. Step 4: Simplify right side
    87,804x = 6,069,429,724.61
  5. Step 5: Solve for x
    x = 6,069,429,724.61/87,804
  6. Step 6: Final answer
    x = 69,124.75

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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.