Home / 67,093.72-100,642.98-20,345.36

Finding the Fourth Proportional to 67,093.72, 100,642.98 and 20,345.36

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Solution

The fourth proportional to 67,093.72, 100,642.98 and 20,345.36 is: 30,518.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,093.72 : 100,642.98 = 20,345.36 : x
  2. Step 2: Convert to fraction form
    67,093.72/100,642.98 = 20,345.36/x
  3. Step 3: Cross multiply
    67,093.72x = 100,642.98 × 20,345.36
  4. Step 4: Simplify right side
    67,093.72x = 2,047,617,659.57
  5. Step 5: Solve for x
    x = 2,047,617,659.57/67,093.72
  6. Step 6: Final answer
    x = 30,518.77

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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.