Home / 90,111.60-124,351.20-49,825.20

Finding the Fourth Proportional to 90,111.60, 124,351.20 and 49,825.20

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Solution

The fourth proportional to 90,111.60, 124,351.20 and 49,825.20 is: 68,757.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,111.60 : 124,351.20 = 49,825.20 : x
  2. Step 2: Convert to fraction form
    90,111.60/124,351.20 = 49,825.20/x
  3. Step 3: Cross multiply
    90,111.60x = 124,351.20 × 49,825.20
  4. Step 4: Simplify right side
    90,111.60x = 6,195,823,410.24
  5. Step 5: Solve for x
    x = 6,195,823,410.24/90,111.60
  6. Step 6: Final answer
    x = 68,757.22

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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.