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Finding the Fourth Proportional to 66,751, 92,116.65 and 36,943

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Solution

The fourth proportional to 66,751, 92,116.65 and 36,943 is: 50,981.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,751 : 92,116.65 = 36,943 : x
  2. Step 2: Convert to fraction form
    66,751/92,116.65 = 36,943/x
  3. Step 3: Cross multiply
    66,751x = 92,116.65 × 36,943
  4. Step 4: Simplify right side
    66,751x = 3,403,065,400.95
  5. Step 5: Solve for x
    x = 3,403,065,400.95/66,751
  6. Step 6: Final answer
    x = 50,981.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.