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Finding the Fourth Proportional to 66,304.20, 99,392.40 and 42,544.74

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Solution

The fourth proportional to 66,304.20, 99,392.40 and 42,544.74 is: 63,776.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,304.20 : 99,392.40 = 42,544.74 : x
  2. Step 2: Convert to fraction form
    66,304.20/99,392.40 = 42,544.74/x
  3. Step 3: Cross multiply
    66,304.20x = 99,392.40 × 42,544.74
  4. Step 4: Simplify right side
    66,304.20x = 4,228,623,815.98
  5. Step 5: Solve for x
    x = 4,228,623,815.98/66,304.20
  6. Step 6: Final answer
    x = 63,776.11

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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.