Home / 65,904.40-98,722.20-40,867.60

Finding the Fourth Proportional to 65,904.40, 98,722.20 and 40,867.60

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Solution

The fourth proportional to 65,904.40, 98,722.20 and 40,867.60 is: 61,218.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,904.40 : 98,722.20 = 40,867.60 : x
  2. Step 2: Convert to fraction form
    65,904.40/98,722.20 = 40,867.60/x
  3. Step 3: Cross multiply
    65,904.40x = 98,722.20 × 40,867.60
  4. Step 4: Simplify right side
    65,904.40x = 4,034,539,380.72
  5. Step 5: Solve for x
    x = 4,034,539,380.72/65,904.40
  6. Step 6: Final answer
    x = 61,218.06

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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.