Home / 73,979.34-110,974.41-21,389.10

Finding the Fourth Proportional to 73,979.34, 110,974.41 and 21,389.10

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Solution

The fourth proportional to 73,979.34, 110,974.41 and 21,389.10 is: 32,085.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,979.34 : 110,974.41 = 21,389.10 : x
  2. Step 2: Convert to fraction form
    73,979.34/110,974.41 = 21,389.10/x
  3. Step 3: Cross multiply
    73,979.34x = 110,974.41 × 21,389.10
  4. Step 4: Simplify right side
    73,979.34x = 2,373,642,752.93
  5. Step 5: Solve for x
    x = 2,373,642,752.93/73,979.34
  6. Step 6: Final answer
    x = 32,085.21

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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.