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Finding the Fourth Proportional to 48,345.33, 72,443.81 and 20,250

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Solution

The fourth proportional to 48,345.33, 72,443.81 and 20,250 is: 30,343.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,345.33 : 72,443.81 = 20,250 : x
  2. Step 2: Convert to fraction form
    48,345.33/72,443.81 = 20,250/x
  3. Step 3: Cross multiply
    48,345.33x = 72,443.81 × 20,250
  4. Step 4: Simplify right side
    48,345.33x = 1,466,987,051.25
  5. Step 5: Solve for x
    x = 1,466,987,051.25/48,345.33
  6. Step 6: Final answer
    x = 30,343.92

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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.