Home / 90,764.49-125,258.19-50,479.95

Finding the Fourth Proportional to 90,764.49, 125,258.19 and 50,479.95

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Solution

The fourth proportional to 90,764.49, 125,258.19 and 50,479.95 is: 69,664.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,764.49 : 125,258.19 = 50,479.95 : x
  2. Step 2: Convert to fraction form
    90,764.49/125,258.19 = 50,479.95/x
  3. Step 3: Cross multiply
    90,764.49x = 125,258.19 × 50,479.95
  4. Step 4: Simplify right side
    90,764.49x = 6,323,027,168.29
  5. Step 5: Solve for x
    x = 6,323,027,168.29/90,764.49
  6. Step 6: Final answer
    x = 69,664.11

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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.