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Finding the Fourth Proportional to 66,948.69, 100,328.64 and 36,976.44

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Solution

The fourth proportional to 66,948.69, 100,328.64 and 36,976.44 is: 55,412.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,948.69 : 100,328.64 = 36,976.44 : x
  2. Step 2: Convert to fraction form
    66,948.69/100,328.64 = 36,976.44/x
  3. Step 3: Cross multiply
    66,948.69x = 100,328.64 × 36,976.44
  4. Step 4: Simplify right side
    66,948.69x = 3,709,795,937.24
  5. Step 5: Solve for x
    x = 3,709,795,937.24/66,948.69
  6. Step 6: Final answer
    x = 55,412.52

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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.