Home / 65,899.82-98,856.34-18,515.02

Finding the Fourth Proportional to 65,899.82, 98,856.34 and 18,515.02

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Solution

The fourth proportional to 65,899.82, 98,856.34 and 18,515.02 is: 27,774.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,899.82 : 98,856.34 = 18,515.02 : x
  2. Step 2: Convert to fraction form
    65,899.82/98,856.34 = 18,515.02/x
  3. Step 3: Cross multiply
    65,899.82x = 98,856.34 × 18,515.02
  4. Step 4: Simplify right side
    65,899.82x = 1,830,327,112.23
  5. Step 5: Solve for x
    x = 1,830,327,112.23/65,899.82
  6. Step 6: Final answer
    x = 27,774.39

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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.