Home / 91,661.74-126,256.58-64,757.53

Finding the Fourth Proportional to 91,661.74, 126,256.58 and 64,757.53

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Solution

The fourth proportional to 91,661.74, 126,256.58 and 64,757.53 is: 89,198.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,661.74 : 126,256.58 = 64,757.53 : x
  2. Step 2: Convert to fraction form
    91,661.74/126,256.58 = 64,757.53/x
  3. Step 3: Cross multiply
    91,661.74x = 126,256.58 × 64,757.53
  4. Step 4: Simplify right side
    91,661.74x = 8,176,063,627.62
  5. Step 5: Solve for x
    x = 8,176,063,627.62/91,661.74
  6. Step 6: Final answer
    x = 89,198.22

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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.