Home / 91,729.56-126,617.88-57,794.92

Finding the Fourth Proportional to 91,729.56, 126,617.88 and 57,794.92

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Solution

The fourth proportional to 91,729.56, 126,617.88 and 57,794.92 is: 79,776.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,729.56 : 126,617.88 = 57,794.92 : x
  2. Step 2: Convert to fraction form
    91,729.56/126,617.88 = 57,794.92/x
  3. Step 3: Cross multiply
    91,729.56x = 126,617.88 × 57,794.92
  4. Step 4: Simplify right side
    91,729.56x = 7,317,870,145.36
  5. Step 5: Solve for x
    x = 7,317,870,145.36/91,729.56
  6. Step 6: Final answer
    x = 79,776.57

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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.