Home / 90,391.40-124,738.85-50,104.29

Finding the Fourth Proportional to 90,391.40, 124,738.85 and 50,104.29

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Solution

The fourth proportional to 90,391.40, 124,738.85 and 50,104.29 is: 69,143.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,391.40 : 124,738.85 = 50,104.29 : x
  2. Step 2: Convert to fraction form
    90,391.40/124,738.85 = 50,104.29/x
  3. Step 3: Cross multiply
    90,391.40x = 124,738.85 × 50,104.29
  4. Step 4: Simplify right side
    90,391.40x = 6,249,951,264.15
  5. Step 5: Solve for x
    x = 6,249,951,264.15/90,391.40
  6. Step 6: Final answer
    x = 69,143.21

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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.