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Finding the Fourth Proportional to 66,433.95, 99,633.89 and 19,675.89

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Solution

The fourth proportional to 66,433.95, 99,633.89 and 19,675.89 is: 29,508.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,433.95 : 99,633.89 = 19,675.89 : x
  2. Step 2: Convert to fraction form
    66,433.95/99,633.89 = 19,675.89/x
  3. Step 3: Cross multiply
    66,433.95x = 99,633.89 × 19,675.89
  4. Step 4: Simplify right side
    66,433.95x = 1,960,385,509.10
  5. Step 5: Solve for x
    x = 1,960,385,509.10/66,433.95
  6. Step 6: Final answer
    x = 29,508.79

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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.