Home / 91,091.31-125,716.98-53,365.56

Finding the Fourth Proportional to 91,091.31, 125,716.98 and 53,365.56

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Solution

The fourth proportional to 91,091.31, 125,716.98 and 53,365.56 is: 73,650.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,091.31 : 125,716.98 = 53,365.56 : x
  2. Step 2: Convert to fraction form
    91,091.31/125,716.98 = 53,365.56/x
  3. Step 3: Cross multiply
    91,091.31x = 125,716.98 × 53,365.56
  4. Step 4: Simplify right side
    91,091.31x = 6,708,957,039.21
  5. Step 5: Solve for x
    x = 6,708,957,039.21/91,091.31
  6. Step 6: Final answer
    x = 73,650.90

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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.