Home / 85,712.22-118,276.94-47,469.02

Finding the Fourth Proportional to 85,712.22, 118,276.94 and 47,469.02

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Solution

The fourth proportional to 85,712.22, 118,276.94 and 47,469.02 is: 65,503.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,712.22 : 118,276.94 = 47,469.02 : x
  2. Step 2: Convert to fraction form
    85,712.22/118,276.94 = 47,469.02/x
  3. Step 3: Cross multiply
    85,712.22x = 118,276.94 × 47,469.02
  4. Step 4: Simplify right side
    85,712.22x = 5,614,489,957.69
  5. Step 5: Solve for x
    x = 5,614,489,957.69/85,712.22
  6. Step 6: Final answer
    x = 65,503.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.