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Finding the Fourth Proportional to 72,458.56, 100,001.02 and 48,258.20

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Solution

The fourth proportional to 72,458.56, 100,001.02 and 48,258.20 is: 66,601.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,458.56 : 100,001.02 = 48,258.20 : x
  2. Step 2: Convert to fraction form
    72,458.56/100,001.02 = 48,258.20/x
  3. Step 3: Cross multiply
    72,458.56x = 100,001.02 × 48,258.20
  4. Step 4: Simplify right side
    72,458.56x = 4,825,869,223.36
  5. Step 5: Solve for x
    x = 4,825,869,223.36/72,458.56
  6. Step 6: Final answer
    x = 66,601.78

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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.