Home / 65,640.30-98,387.55-36,079.35

Finding the Fourth Proportional to 65,640.30, 98,387.55 and 36,079.35

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Solution

The fourth proportional to 65,640.30, 98,387.55 and 36,079.35 is: 54,078.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,640.30 : 98,387.55 = 36,079.35 : x
  2. Step 2: Convert to fraction form
    65,640.30/98,387.55 = 36,079.35/x
  3. Step 3: Cross multiply
    65,640.30x = 98,387.55 × 36,079.35
  4. Step 4: Simplify right side
    65,640.30x = 3,549,758,852.09
  5. Step 5: Solve for x
    x = 3,549,758,852.09/65,640.30
  6. Step 6: Final answer
    x = 54,078.96

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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.