Home / 91,506.12-126,357.24-57,571.17

Finding the Fourth Proportional to 91,506.12, 126,357.24 and 57,571.17

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Solution

The fourth proportional to 91,506.12, 126,357.24 and 57,571.17 is: 79,497.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,506.12 : 126,357.24 = 57,571.17 : x
  2. Step 2: Convert to fraction form
    91,506.12/126,357.24 = 57,571.17/x
  3. Step 3: Cross multiply
    91,506.12x = 126,357.24 × 57,571.17
  4. Step 4: Simplify right side
    91,506.12x = 7,274,534,144.77
  5. Step 5: Solve for x
    x = 7,274,534,144.77/91,506.12
  6. Step 6: Final answer
    x = 79,497.79

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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.