Home / 68,724.92-103,103.51-21,337.59

Finding the Fourth Proportional to 68,724.92, 103,103.51 and 21,337.59

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Solution

The fourth proportional to 68,724.92, 103,103.51 and 21,337.59 is: 32,011.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,724.92 : 103,103.51 = 21,337.59 : x
  2. Step 2: Convert to fraction form
    68,724.92/103,103.51 = 21,337.59/x
  3. Step 3: Cross multiply
    68,724.92x = 103,103.51 × 21,337.59
  4. Step 4: Simplify right side
    68,724.92x = 2,199,980,317.25
  5. Step 5: Solve for x
    x = 2,199,980,317.25/68,724.92
  6. Step 6: Final answer
    x = 32,011.39

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1.5x scale

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.