Home / 48,074.72-72,121.19-19,979.51

Finding the Fourth Proportional to 48,074.72, 72,121.19 and 19,979.51

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Solution

The fourth proportional to 48,074.72, 72,121.19 and 19,979.51 is: 29,973.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,074.72 : 72,121.19 = 19,979.51 : x
  2. Step 2: Convert to fraction form
    48,074.72/72,121.19 = 19,979.51/x
  3. Step 3: Cross multiply
    48,074.72x = 72,121.19 × 19,979.51
  4. Step 4: Simplify right side
    48,074.72x = 1,440,945,982.00
  5. Step 5: Solve for x
    x = 1,440,945,982.00/48,074.72
  6. Step 6: Final answer
    x = 29,973.05

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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.