Home / 74,669.15-111,986.03-21,359.48

Finding the Fourth Proportional to 74,669.15, 111,986.03 and 21,359.48

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Solution

The fourth proportional to 74,669.15, 111,986.03 and 21,359.48 is: 32,034.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,669.15 : 111,986.03 = 21,359.48 : x
  2. Step 2: Convert to fraction form
    74,669.15/111,986.03 = 21,359.48/x
  3. Step 3: Cross multiply
    74,669.15x = 111,986.03 × 21,359.48
  4. Step 4: Simplify right side
    74,669.15x = 2,391,962,981.30
  5. Step 5: Solve for x
    x = 2,391,962,981.30/74,669.15
  6. Step 6: Final answer
    x = 32,034.16

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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.