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Finding the Fourth Proportional to 90,054.75, 124,275.95 and 49,219.71

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Solution

The fourth proportional to 90,054.75, 124,275.95 and 49,219.71 is: 67,923.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,054.75 : 124,275.95 = 49,219.71 : x
  2. Step 2: Convert to fraction form
    90,054.75/124,275.95 = 49,219.71/x
  3. Step 3: Cross multiply
    90,054.75x = 124,275.95 × 49,219.71
  4. Step 4: Simplify right side
    90,054.75x = 6,116,825,691.42
  5. Step 5: Solve for x
    x = 6,116,825,691.42/90,054.75
  6. Step 6: Final answer
    x = 67,923.41

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Double scale
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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.