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Finding the Fourth Proportional to 60,294.36, 90,379.42 and 40,578.55

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Solution

The fourth proportional to 60,294.36, 90,379.42 and 40,578.55 is: 60,826.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,294.36 : 90,379.42 = 40,578.55 : x
  2. Step 2: Convert to fraction form
    60,294.36/90,379.42 = 40,578.55/x
  3. Step 3: Cross multiply
    60,294.36x = 90,379.42 × 40,578.55
  4. Step 4: Simplify right side
    60,294.36x = 3,667,465,813.44
  5. Step 5: Solve for x
    x = 3,667,465,813.44/60,294.36
  6. Step 6: Final answer
    x = 60,826.02

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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.