Home / 91,340.75-126,041.33-57,338.37

Finding the Fourth Proportional to 91,340.75, 126,041.33 and 57,338.37

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Solution

The fourth proportional to 91,340.75, 126,041.33 and 57,338.37 is: 79,121.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,340.75 : 126,041.33 = 57,338.37 : x
  2. Step 2: Convert to fraction form
    91,340.75/126,041.33 = 57,338.37/x
  3. Step 3: Cross multiply
    91,340.75x = 126,041.33 × 57,338.37
  4. Step 4: Simplify right side
    91,340.75x = 7,227,004,558.18
  5. Step 5: Solve for x
    x = 7,227,004,558.18/91,340.75
  6. Step 6: Final answer
    x = 79,121.36

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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.