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Finding the Fourth Proportional to 66,946, 92,386.34 and 36,729.40

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Solution

The fourth proportional to 66,946, 92,386.34 and 36,729.40 is: 50,687.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,946 : 92,386.34 = 36,729.40 : x
  2. Step 2: Convert to fraction form
    66,946/92,386.34 = 36,729.40/x
  3. Step 3: Cross multiply
    66,946x = 92,386.34 × 36,729.40
  4. Step 4: Simplify right side
    66,946x = 3,393,294,836.40
  5. Step 5: Solve for x
    x = 3,393,294,836.40/66,946
  6. Step 6: Final answer
    x = 50,687.04

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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.