Home / 87,825.20-121,185.74-53,352.01

Finding the Fourth Proportional to 87,825.20, 121,185.74 and 53,352.01

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Solution

The fourth proportional to 87,825.20, 121,185.74 and 53,352.01 is: 73,617.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,825.20 : 121,185.74 = 53,352.01 : x
  2. Step 2: Convert to fraction form
    87,825.20/121,185.74 = 53,352.01/x
  3. Step 3: Cross multiply
    87,825.20x = 121,185.74 × 53,352.01
  4. Step 4: Simplify right side
    87,825.20x = 6,465,502,642.75
  5. Step 5: Solve for x
    x = 6,465,502,642.75/87,825.20
  6. Step 6: Final answer
    x = 73,617.85

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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.