Home / 65,709.15-98,580.18-18,962.03

Finding the Fourth Proportional to 65,709.15, 98,580.18 and 18,962.03

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Solution

The fourth proportional to 65,709.15, 98,580.18 and 18,962.03 is: 28,447.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,709.15 : 98,580.18 = 18,962.03 : x
  2. Step 2: Convert to fraction form
    65,709.15/98,580.18 = 18,962.03/x
  3. Step 3: Cross multiply
    65,709.15x = 98,580.18 × 18,962.03
  4. Step 4: Simplify right side
    65,709.15x = 1,869,279,837.66
  5. Step 5: Solve for x
    x = 1,869,279,837.66/65,709.15
  6. Step 6: Final answer
    x = 28,447.79

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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.