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Finding the Fourth Proportional to 69,894.10, 104,334.41 and 64,690.87

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Solution

The fourth proportional to 69,894.10, 104,334.41 and 64,690.87 is: 96,567.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,894.10 : 104,334.41 = 64,690.87 : x
  2. Step 2: Convert to fraction form
    69,894.10/104,334.41 = 64,690.87/x
  3. Step 3: Cross multiply
    69,894.10x = 104,334.41 × 64,690.87
  4. Step 4: Simplify right side
    69,894.10x = 6,749,483,753.84
  5. Step 5: Solve for x
    x = 6,749,483,753.84/69,894.10
  6. Step 6: Final answer
    x = 96,567.29

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.