Home / 87,998.16-121,429.96-50,265.04

Finding the Fourth Proportional to 87,998.16, 121,429.96 and 50,265.04

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Solution

The fourth proportional to 87,998.16, 121,429.96 and 50,265.04 is: 69,361.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,998.16 : 121,429.96 = 50,265.04 : x
  2. Step 2: Convert to fraction form
    87,998.16/121,429.96 = 50,265.04/x
  3. Step 3: Cross multiply
    87,998.16x = 121,429.96 × 50,265.04
  4. Step 4: Simplify right side
    87,998.16x = 6,103,681,796.60
  5. Step 5: Solve for x
    x = 6,103,681,796.60/87,998.16
  6. Step 6: Final answer
    x = 69,361.47

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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.