Home / 87,859.53-121,248.23-50,137.29

Finding the Fourth Proportional to 87,859.53, 121,248.23 and 50,137.29

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Solution

The fourth proportional to 87,859.53, 121,248.23 and 50,137.29 is: 69,190.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,859.53 : 121,248.23 = 50,137.29 : x
  2. Step 2: Convert to fraction form
    87,859.53/121,248.23 = 50,137.29/x
  3. Step 3: Cross multiply
    87,859.53x = 121,248.23 × 50,137.29
  4. Step 4: Simplify right side
    87,859.53x = 6,079,057,418.81
  5. Step 5: Solve for x
    x = 6,079,057,418.81/87,859.53
  6. Step 6: Final answer
    x = 69,190.64

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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.