Home / 48,495.81-72,761.49-20,422.94

Finding the Fourth Proportional to 48,495.81, 72,761.49 and 20,422.94

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Solution

The fourth proportional to 48,495.81, 72,761.49 and 20,422.94 is: 30,641.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,495.81 : 72,761.49 = 20,422.94 : x
  2. Step 2: Convert to fraction form
    48,495.81/72,761.49 = 20,422.94/x
  3. Step 3: Cross multiply
    48,495.81x = 72,761.49 × 20,422.94
  4. Step 4: Simplify right side
    48,495.81x = 1,486,003,180.77
  5. Step 5: Solve for x
    x = 1,486,003,180.77/48,495.81
  6. Step 6: Final answer
    x = 30,641.89

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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.