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Finding the Fourth Proportional to 69,989.88, 96,583.22 and 38,158.10

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Solution

The fourth proportional to 69,989.88, 96,583.22 and 38,158.10 is: 52,656.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,989.88 : 96,583.22 = 38,158.10 : x
  2. Step 2: Convert to fraction form
    69,989.88/96,583.22 = 38,158.10/x
  3. Step 3: Cross multiply
    69,989.88x = 96,583.22 × 38,158.10
  4. Step 4: Simplify right side
    69,989.88x = 3,685,431,684.17
  5. Step 5: Solve for x
    x = 3,685,431,684.17/69,989.88
  6. Step 6: Final answer
    x = 52,656.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.