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Finding the Fourth Proportional to 69,159.57, 103,702.23 and 21,765.80

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Solution

The fourth proportional to 69,159.57, 103,702.23 and 21,765.80 is: 32,637.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,159.57 : 103,702.23 = 21,765.80 : x
  2. Step 2: Convert to fraction form
    69,159.57/103,702.23 = 21,765.80/x
  3. Step 3: Cross multiply
    69,159.57x = 103,702.23 × 21,765.80
  4. Step 4: Simplify right side
    69,159.57x = 2,257,161,479.22
  5. Step 5: Solve for x
    x = 2,257,161,479.22/69,159.57
  6. Step 6: Final answer
    x = 32,637.01

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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.