Home / 85,725.75-118,274.19-55,534.22

Finding the Fourth Proportional to 85,725.75, 118,274.19 and 55,534.22

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Solution

The fourth proportional to 85,725.75, 118,274.19 and 55,534.22 is: 76,619.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,725.75 : 118,274.19 = 55,534.22 : x
  2. Step 2: Convert to fraction form
    85,725.75/118,274.19 = 55,534.22/x
  3. Step 3: Cross multiply
    85,725.75x = 118,274.19 × 55,534.22
  4. Step 4: Simplify right side
    85,725.75x = 6,568,264,296.41
  5. Step 5: Solve for x
    x = 6,568,264,296.41/85,725.75
  6. Step 6: Final answer
    x = 76,619.50

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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.