Home / 48,066.93-72,105.66-19,990.31

Finding the Fourth Proportional to 48,066.93, 72,105.66 and 19,990.31

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Solution

The fourth proportional to 48,066.93, 72,105.66 and 19,990.31 is: 29,987.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,066.93 : 72,105.66 = 19,990.31 : x
  2. Step 2: Convert to fraction form
    48,066.93/72,105.66 = 19,990.31/x
  3. Step 3: Cross multiply
    48,066.93x = 72,105.66 × 19,990.31
  4. Step 4: Simplify right side
    48,066.93x = 1,441,414,135.63
  5. Step 5: Solve for x
    x = 1,441,414,135.63/48,066.93
  6. Step 6: Final answer
    x = 29,987.65

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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.