Home / 67,345.12-101,007.96-20,585.44

Finding the Fourth Proportional to 67,345.12, 101,007.96 and 20,585.44

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Solution

The fourth proportional to 67,345.12, 101,007.96 and 20,585.44 is: 30,875.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,345.12 : 101,007.96 = 20,585.44 : x
  2. Step 2: Convert to fraction form
    67,345.12/101,007.96 = 20,585.44/x
  3. Step 3: Cross multiply
    67,345.12x = 101,007.96 × 20,585.44
  4. Step 4: Simplify right side
    67,345.12x = 2,079,293,300.10
  5. Step 5: Solve for x
    x = 2,079,293,300.10/67,345.12
  6. Step 6: Final answer
    x = 30,875.19

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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.