Home / 85,725.25-118,273.51-55,533.72

Finding the Fourth Proportional to 85,725.25, 118,273.51 and 55,533.72

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Solution

The fourth proportional to 85,725.25, 118,273.51 and 55,533.72 is: 76,618.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,725.25 : 118,273.51 = 55,533.72 : x
  2. Step 2: Convert to fraction form
    85,725.25/118,273.51 = 55,533.72/x
  3. Step 3: Cross multiply
    85,725.25x = 118,273.51 × 55,533.72
  4. Step 4: Simplify right side
    85,725.25x = 6,568,167,987.76
  5. Step 5: Solve for x
    x = 6,568,167,987.76/85,725.25
  6. Step 6: Final answer
    x = 76,618.83

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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.