Home / 73,268.10-109,909.38-20,678.04

Finding the Fourth Proportional to 73,268.10, 109,909.38 and 20,678.04

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Solution

The fourth proportional to 73,268.10, 109,909.38 and 20,678.04 is: 31,019.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,268.10 : 109,909.38 = 20,678.04 : x
  2. Step 2: Convert to fraction form
    73,268.10/109,909.38 = 20,678.04/x
  3. Step 3: Cross multiply
    73,268.10x = 109,909.38 × 20,678.04
  4. Step 4: Simplify right side
    73,268.10x = 2,272,710,556.02
  5. Step 5: Solve for x
    x = 2,272,710,556.02/73,268.10
  6. Step 6: Final answer
    x = 31,019.10

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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.