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Finding the Fourth Proportional to 66,959.41, 100,401.03 and 51,756.59

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Solution

The fourth proportional to 66,959.41, 100,401.03 and 51,756.59 is: 77,605.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,959.41 : 100,401.03 = 51,756.59 : x
  2. Step 2: Convert to fraction form
    66,959.41/100,401.03 = 51,756.59/x
  3. Step 3: Cross multiply
    66,959.41x = 100,401.03 × 51,756.59
  4. Step 4: Simplify right side
    66,959.41x = 5,196,414,945.29
  5. Step 5: Solve for x
    x = 5,196,414,945.29/66,959.41
  6. Step 6: Final answer
    x = 77,605.45

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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.