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Finding the Fourth Proportional to 69,018.31, 103,529.77 and 19,094.23

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Solution

The fourth proportional to 69,018.31, 103,529.77 and 19,094.23 is: 28,641.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,018.31 : 103,529.77 = 19,094.23 : x
  2. Step 2: Convert to fraction form
    69,018.31/103,529.77 = 19,094.23/x
  3. Step 3: Cross multiply
    69,018.31x = 103,529.77 × 19,094.23
  4. Step 4: Simplify right side
    69,018.31x = 1,976,821,375.61
  5. Step 5: Solve for x
    x = 1,976,821,375.61/69,018.31
  6. Step 6: Final answer
    x = 28,641.98

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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.