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Finding the Fourth Proportional to 69,418.88, 104,132.35 and 19,502.87

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Solution

The fourth proportional to 69,418.88, 104,132.35 and 19,502.87 is: 29,255.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,418.88 : 104,132.35 = 19,502.87 : x
  2. Step 2: Convert to fraction form
    69,418.88/104,132.35 = 19,502.87/x
  3. Step 3: Cross multiply
    69,418.88x = 104,132.35 × 19,502.87
  4. Step 4: Simplify right side
    69,418.88x = 2,030,879,164.18
  5. Step 5: Solve for x
    x = 2,030,879,164.18/69,418.88
  6. Step 6: Final answer
    x = 29,255.43

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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.