Home / 66,473.09-91,766.71-51,331.76

Finding the Fourth Proportional to 66,473.09, 91,766.71 and 51,331.76

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Solution

The fourth proportional to 66,473.09, 91,766.71 and 51,331.76 is: 70,863.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,473.09 : 91,766.71 = 51,331.76 : x
  2. Step 2: Convert to fraction form
    66,473.09/91,766.71 = 51,331.76/x
  3. Step 3: Cross multiply
    66,473.09x = 91,766.71 × 51,331.76
  4. Step 4: Simplify right side
    66,473.09x = 4,710,546,274.88
  5. Step 5: Solve for x
    x = 4,710,546,274.88/66,473.09
  6. Step 6: Final answer
    x = 70,863.96

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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.