Home / 69,005.79-103,508.57-21,624.53

Finding the Fourth Proportional to 69,005.79, 103,508.57 and 21,624.53

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Solution

The fourth proportional to 69,005.79, 103,508.57 and 21,624.53 is: 32,436.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,005.79 : 103,508.57 = 21,624.53 : x
  2. Step 2: Convert to fraction form
    69,005.79/103,508.57 = 21,624.53/x
  3. Step 3: Cross multiply
    69,005.79x = 103,508.57 × 21,624.53
  4. Step 4: Simplify right side
    69,005.79x = 2,238,323,713.74
  5. Step 5: Solve for x
    x = 2,238,323,713.74/69,005.79
  6. Step 6: Final answer
    x = 32,436.75

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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.