Home / 65,605.12-98,330.72-28,185.44

Finding the Fourth Proportional to 65,605.12, 98,330.72 and 28,185.44

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Solution

The fourth proportional to 65,605.12, 98,330.72 and 28,185.44 is: 42,245.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,605.12 : 98,330.72 = 28,185.44 : x
  2. Step 2: Convert to fraction form
    65,605.12/98,330.72 = 28,185.44/x
  3. Step 3: Cross multiply
    65,605.12x = 98,330.72 × 28,185.44
  4. Step 4: Simplify right side
    65,605.12x = 2,771,494,608.72
  5. Step 5: Solve for x
    x = 2,771,494,608.72/65,605.12
  6. Step 6: Final answer
    x = 42,245.10

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1.5x scale

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.