Home / 48,781.10-73,192.62-20,720.10

Finding the Fourth Proportional to 48,781.10, 73,192.62 and 20,720.10

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Solution

The fourth proportional to 48,781.10, 73,192.62 and 20,720.10 is: 31,089.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,781.10 : 73,192.62 = 20,720.10 : x
  2. Step 2: Convert to fraction form
    48,781.10/73,192.62 = 20,720.10/x
  3. Step 3: Cross multiply
    48,781.10x = 73,192.62 × 20,720.10
  4. Step 4: Simplify right side
    48,781.10x = 1,516,558,405.66
  5. Step 5: Solve for x
    x = 1,516,558,405.66/48,781.10
  6. Step 6: Final answer
    x = 31,089.06

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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.