Home / 65,687.22-98,531.64-18,940.50

Finding the Fourth Proportional to 65,687.22, 98,531.64 and 18,940.50

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Solution

The fourth proportional to 65,687.22, 98,531.64 and 18,940.50 is: 28,410.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,687.22 : 98,531.64 = 18,940.50 : x
  2. Step 2: Convert to fraction form
    65,687.22/98,531.64 = 18,940.50/x
  3. Step 3: Cross multiply
    65,687.22x = 98,531.64 × 18,940.50
  4. Step 4: Simplify right side
    65,687.22x = 1,866,238,527.42
  5. Step 5: Solve for x
    x = 1,866,238,527.42/65,687.22
  6. Step 6: Final answer
    x = 28,410.98

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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.