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Finding the Fourth Proportional to 66,410.61, 99,645.35 and 34,813.12

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Solution

The fourth proportional to 66,410.61, 99,645.35 and 34,813.12 is: 52,235.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,410.61 : 99,645.35 = 34,813.12 : x
  2. Step 2: Convert to fraction form
    66,410.61/99,645.35 = 34,813.12/x
  3. Step 3: Cross multiply
    66,410.61x = 99,645.35 × 34,813.12
  4. Step 4: Simplify right side
    66,410.61x = 3,468,965,526.99
  5. Step 5: Solve for x
    x = 3,468,965,526.99/66,410.61
  6. Step 6: Final answer
    x = 52,235.11

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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.