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Finding the Fourth Proportional to 70,979.00, 106,452.09 and 21,047.04

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Solution

The fourth proportional to 70,979.00, 106,452.09 and 21,047.04 is: 31,565.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,979.00 : 106,452.09 = 21,047.04 : x
  2. Step 2: Convert to fraction form
    70,979.00/106,452.09 = 21,047.04/x
  3. Step 3: Cross multiply
    70,979.00x = 106,452.09 × 21,047.04
  4. Step 4: Simplify right side
    70,979.00x = 2,240,501,396.31
  5. Step 5: Solve for x
    x = 2,240,501,396.31/70,979.00
  6. Step 6: Final answer
    x = 31,565.70

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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.