Home / 91,619.14-126,432.21-51,334.60

Finding the Fourth Proportional to 91,619.14, 126,432.21 and 51,334.60

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Solution

The fourth proportional to 91,619.14, 126,432.21 and 51,334.60 is: 70,840.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,619.14 : 126,432.21 = 51,334.60 : x
  2. Step 2: Convert to fraction form
    91,619.14/126,432.21 = 51,334.60/x
  3. Step 3: Cross multiply
    91,619.14x = 126,432.21 × 51,334.60
  4. Step 4: Simplify right side
    91,619.14x = 6,490,346,927.47
  5. Step 5: Solve for x
    x = 6,490,346,927.47/91,619.14
  6. Step 6: Final answer
    x = 70,840.51

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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.