Home / 91,195.47-125,851.86-57,205.39

Finding the Fourth Proportional to 91,195.47, 125,851.86 and 57,205.39

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Solution

The fourth proportional to 91,195.47, 125,851.86 and 57,205.39 is: 78,944.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,195.47 : 125,851.86 = 57,205.39 : x
  2. Step 2: Convert to fraction form
    91,195.47/125,851.86 = 57,205.39/x
  3. Step 3: Cross multiply
    91,195.47x = 125,851.86 × 57,205.39
  4. Step 4: Simplify right side
    91,195.47x = 7,199,404,418.90
  5. Step 5: Solve for x
    x = 7,199,404,418.90/91,195.47
  6. Step 6: Final answer
    x = 78,944.76

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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.