Home / 90,258.09-124,560.75-49,976.28

Finding the Fourth Proportional to 90,258.09, 124,560.75 and 49,976.28

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Solution

The fourth proportional to 90,258.09, 124,560.75 and 49,976.28 is: 68,969.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,258.09 : 124,560.75 = 49,976.28 : x
  2. Step 2: Convert to fraction form
    90,258.09/124,560.75 = 49,976.28/x
  3. Step 3: Cross multiply
    90,258.09x = 124,560.75 × 49,976.28
  4. Step 4: Simplify right side
    90,258.09x = 6,225,082,919.01
  5. Step 5: Solve for x
    x = 6,225,082,919.01/90,258.09
  6. Step 6: Final answer
    x = 68,969.81

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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.