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Finding the Fourth Proportional to 66,068.46, 99,117.82 and 28,634.82

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Solution

The fourth proportional to 66,068.46, 99,117.82 and 28,634.82 is: 42,958.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,068.46 : 99,117.82 = 28,634.82 : x
  2. Step 2: Convert to fraction form
    66,068.46/99,117.82 = 28,634.82/x
  3. Step 3: Cross multiply
    66,068.46x = 99,117.82 × 28,634.82
  4. Step 4: Simplify right side
    66,068.46x = 2,838,220,934.49
  5. Step 5: Solve for x
    x = 2,838,220,934.49/66,068.46
  6. Step 6: Final answer
    x = 42,958.79

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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.