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Finding the Fourth Proportional to 60,327.86, 90,491.81 and 20,863.44

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Solution

The fourth proportional to 60,327.86, 90,491.81 and 20,863.44 is: 31,295.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,327.86 : 90,491.81 = 20,863.44 : x
  2. Step 2: Convert to fraction form
    60,327.86/90,491.81 = 20,863.44/x
  3. Step 3: Cross multiply
    60,327.86x = 90,491.81 × 20,863.44
  4. Step 4: Simplify right side
    60,327.86x = 1,887,970,344.11
  5. Step 5: Solve for x
    x = 1,887,970,344.11/60,327.86
  6. Step 6: Final answer
    x = 31,295.17

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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.