Home / 66,261.36-91,461.22-40,775.52

Finding the Fourth Proportional to 66,261.36, 91,461.22 and 40,775.52

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Solution

The fourth proportional to 66,261.36, 91,461.22 and 40,775.52 is: 56,282.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,261.36 : 91,461.22 = 40,775.52 : x
  2. Step 2: Convert to fraction form
    66,261.36/91,461.22 = 40,775.52/x
  3. Step 3: Cross multiply
    66,261.36x = 91,461.22 × 40,775.52
  4. Step 4: Simplify right side
    66,261.36x = 3,729,378,805.33
  5. Step 5: Solve for x
    x = 3,729,378,805.33/66,261.36
  6. Step 6: Final answer
    x = 56,282.86

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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.