Home / 85,387.42-117,910.48-53,177.34

Finding the Fourth Proportional to 85,387.42, 117,910.48 and 53,177.34

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Solution

The fourth proportional to 85,387.42, 117,910.48 and 53,177.34 is: 73,431.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,387.42 : 117,910.48 = 53,177.34 : x
  2. Step 2: Convert to fraction form
    85,387.42/117,910.48 = 53,177.34/x
  3. Step 3: Cross multiply
    85,387.42x = 117,910.48 × 53,177.34
  4. Step 4: Simplify right side
    85,387.42x = 6,270,165,684.52
  5. Step 5: Solve for x
    x = 6,270,165,684.52/85,387.42
  6. Step 6: Final answer
    x = 73,431.96

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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.