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Finding the Fourth Proportional to 72,508.33, 100,062.48 and 54,326.80

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Solution

The fourth proportional to 72,508.33, 100,062.48 and 54,326.80 is: 74,971.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,508.33 : 100,062.48 = 54,326.80 : x
  2. Step 2: Convert to fraction form
    72,508.33/100,062.48 = 54,326.80/x
  3. Step 3: Cross multiply
    72,508.33x = 100,062.48 × 54,326.80
  4. Step 4: Simplify right side
    72,508.33x = 5,436,074,338.46
  5. Step 5: Solve for x
    x = 5,436,074,338.46/72,508.33
  6. Step 6: Final answer
    x = 74,971.72

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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.