Home / 66,945.78-92,384.36-36,731.36

Finding the Fourth Proportional to 66,945.78, 92,384.36 and 36,731.36

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Solution

The fourth proportional to 66,945.78, 92,384.36 and 36,731.36 is: 50,688.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,945.78 : 92,384.36 = 36,731.36 : x
  2. Step 2: Convert to fraction form
    66,945.78/92,384.36 = 36,731.36/x
  3. Step 3: Cross multiply
    66,945.78x = 92,384.36 × 36,731.36
  4. Step 4: Simplify right side
    66,945.78x = 3,393,403,185.53
  5. Step 5: Solve for x
    x = 3,393,403,185.53/66,945.78
  6. Step 6: Final answer
    x = 50,688.83

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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.