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Finding the Fourth Proportional to 66,719.34, 92,071.91 and 36,504.31

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Solution

The fourth proportional to 66,719.34, 92,071.91 and 36,504.31 is: 50,375.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,719.34 : 92,071.91 = 36,504.31 : x
  2. Step 2: Convert to fraction form
    66,719.34/92,071.91 = 36,504.31/x
  3. Step 3: Cross multiply
    66,719.34x = 92,071.91 × 36,504.31
  4. Step 4: Simplify right side
    66,719.34x = 3,361,021,362.41
  5. Step 5: Solve for x
    x = 3,361,021,362.41/66,719.34
  6. Step 6: Final answer
    x = 50,375.52

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1.5x scale

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.