Home / 67,837.80-101,756.22-21,090.60

Finding the Fourth Proportional to 67,837.80, 101,756.22 and 21,090.60

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Solution

The fourth proportional to 67,837.80, 101,756.22 and 21,090.60 is: 31,635.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,837.80 : 101,756.22 = 21,090.60 : x
  2. Step 2: Convert to fraction form
    67,837.80/101,756.22 = 21,090.60/x
  3. Step 3: Cross multiply
    67,837.80x = 101,756.22 × 21,090.60
  4. Step 4: Simplify right side
    67,837.80x = 2,146,099,733.53
  5. Step 5: Solve for x
    x = 2,146,099,733.53/67,837.80
  6. Step 6: Final answer
    x = 31,635.75

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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.