Home / 91,611.54-126,427.59-51,325.65

Finding the Fourth Proportional to 91,611.54, 126,427.59 and 51,325.65

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Solution

The fourth proportional to 91,611.54, 126,427.59 and 51,325.65 is: 70,831.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,611.54 : 126,427.59 = 51,325.65 : x
  2. Step 2: Convert to fraction form
    91,611.54/126,427.59 = 51,325.65/x
  3. Step 3: Cross multiply
    91,611.54x = 126,427.59 × 51,325.65
  4. Step 4: Simplify right side
    91,611.54x = 6,488,978,234.68
  5. Step 5: Solve for x
    x = 6,488,978,234.68/91,611.54
  6. Step 6: Final answer
    x = 70,831.45

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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.