Home / 74,436.48-111,665.88-21,839.76

Finding the Fourth Proportional to 74,436.48, 111,665.88 and 21,839.76

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Solution

The fourth proportional to 74,436.48, 111,665.88 and 21,839.76 is: 32,762.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,436.48 : 111,665.88 = 21,839.76 : x
  2. Step 2: Convert to fraction form
    74,436.48/111,665.88 = 21,839.76/x
  3. Step 3: Cross multiply
    74,436.48x = 111,665.88 × 21,839.76
  4. Step 4: Simplify right side
    74,436.48x = 2,438,756,019.39
  5. Step 5: Solve for x
    x = 2,438,756,019.39/74,436.48
  6. Step 6: Final answer
    x = 32,762.91

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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.