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Finding the Fourth Proportional to 60,976.56, 91,467.80 and 18,885.68

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Solution

The fourth proportional to 60,976.56, 91,467.80 and 18,885.68 is: 28,329.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,976.56 : 91,467.80 = 18,885.68 : x
  2. Step 2: Convert to fraction form
    60,976.56/91,467.80 = 18,885.68/x
  3. Step 3: Cross multiply
    60,976.56x = 91,467.80 × 18,885.68
  4. Step 4: Simplify right side
    60,976.56x = 1,727,431,601.10
  5. Step 5: Solve for x
    x = 1,727,431,601.10/60,976.56
  6. Step 6: Final answer
    x = 28,329.44

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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.