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Finding the Fourth Proportional to 92,367.60, 138,205.41 and 65,775.05

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Solution

The fourth proportional to 92,367.60, 138,205.41 and 65,775.05 is: 98,416.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,367.60 : 138,205.41 = 65,775.05 : x
  2. Step 2: Convert to fraction form
    92,367.60/138,205.41 = 65,775.05/x
  3. Step 3: Cross multiply
    92,367.60x = 138,205.41 × 65,775.05
  4. Step 4: Simplify right side
    92,367.60x = 9,090,468,082.94
  5. Step 5: Solve for x
    x = 9,090,468,082.94/92,367.60
  6. Step 6: Final answer
    x = 98,416.20

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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.