Home / 66,912.83-92,375.57-51,678.22

Finding the Fourth Proportional to 66,912.83, 92,375.57 and 51,678.22

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Solution

The fourth proportional to 66,912.83, 92,375.57 and 51,678.22 is: 71,343.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,912.83 : 92,375.57 = 51,678.22 : x
  2. Step 2: Convert to fraction form
    66,912.83/92,375.57 = 51,678.22/x
  3. Step 3: Cross multiply
    66,912.83x = 92,375.57 × 51,678.22
  4. Step 4: Simplify right side
    66,912.83x = 4,773,805,100.55
  5. Step 5: Solve for x
    x = 4,773,805,100.55/66,912.83
  6. Step 6: Final answer
    x = 71,343.64

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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.