Home / 85,722.75-118,270.06-55,531.22

Finding the Fourth Proportional to 85,722.75, 118,270.06 and 55,531.22

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Solution

The fourth proportional to 85,722.75, 118,270.06 and 55,531.22 is: 76,615.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,722.75 : 118,270.06 = 55,531.22 : x
  2. Step 2: Convert to fraction form
    85,722.75/118,270.06 = 55,531.22/x
  3. Step 3: Cross multiply
    85,722.75x = 118,270.06 × 55,531.22
  4. Step 4: Simplify right side
    85,722.75x = 6,567,679,991.09
  5. Step 5: Solve for x
    x = 6,567,679,991.09/85,722.75
  6. Step 6: Final answer
    x = 76,615.37

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1.5x scale

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.