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Finding the Fourth Proportional to 69,257.80, 103,886.70 and 22,515.40

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Solution

The fourth proportional to 69,257.80, 103,886.70 and 22,515.40 is: 33,773.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,257.80 : 103,886.70 = 22,515.40 : x
  2. Step 2: Convert to fraction form
    69,257.80/103,886.70 = 22,515.40/x
  3. Step 3: Cross multiply
    69,257.80x = 103,886.70 × 22,515.40
  4. Step 4: Simplify right side
    69,257.80x = 2,339,050,605.18
  5. Step 5: Solve for x
    x = 2,339,050,605.18/69,257.80
  6. Step 6: Final answer
    x = 33,773.10

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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.