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Finding the Fourth Proportional to 40,502.20, 60,745.20 and 19,442.20

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Solution

The fourth proportional to 40,502.20, 60,745.20 and 19,442.20 is: 29,159.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,502.20 : 60,745.20 = 19,442.20 : x
  2. Step 2: Convert to fraction form
    40,502.20/60,745.20 = 19,442.20/x
  3. Step 3: Cross multiply
    40,502.20x = 60,745.20 × 19,442.20
  4. Step 4: Simplify right side
    40,502.20x = 1,181,020,327.44
  5. Step 5: Solve for x
    x = 1,181,020,327.44/40,502.20
  6. Step 6: Final answer
    x = 29,159.41

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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.