Home / 48,218.09-72,338.67-20,122.52

Finding the Fourth Proportional to 48,218.09, 72,338.67 and 20,122.52

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Solution

The fourth proportional to 48,218.09, 72,338.67 and 20,122.52 is: 30,188.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,218.09 : 72,338.67 = 20,122.52 : x
  2. Step 2: Convert to fraction form
    48,218.09/72,338.67 = 20,122.52/x
  3. Step 3: Cross multiply
    48,218.09x = 72,338.67 × 20,122.52
  4. Step 4: Simplify right side
    48,218.09x = 1,455,635,972.16
  5. Step 5: Solve for x
    x = 1,455,635,972.16/48,218.09
  6. Step 6: Final answer
    x = 30,188.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.