Home / 85,723.13-118,270.58-55,531.59

Finding the Fourth Proportional to 85,723.13, 118,270.58 and 55,531.59

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Solution

The fourth proportional to 85,723.13, 118,270.58 and 55,531.59 is: 76,615.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,723.13 : 118,270.58 = 55,531.59 : x
  2. Step 2: Convert to fraction form
    85,723.13/118,270.58 = 55,531.59/x
  3. Step 3: Cross multiply
    85,723.13x = 118,270.58 × 55,531.59
  4. Step 4: Simplify right side
    85,723.13x = 6,567,753,079.96
  5. Step 5: Solve for x
    x = 6,567,753,079.96/85,723.13
  6. Step 6: Final answer
    x = 76,615.88

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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.