Home / 91,712.43-126,569.67-50,889.93

Finding the Fourth Proportional to 91,712.43, 126,569.67 and 50,889.93

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Solution

The fourth proportional to 91,712.43, 126,569.67 and 50,889.93 is: 70,231.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,712.43 : 126,569.67 = 50,889.93 : x
  2. Step 2: Convert to fraction form
    91,712.43/126,569.67 = 50,889.93/x
  3. Step 3: Cross multiply
    91,712.43x = 126,569.67 × 50,889.93
  4. Step 4: Simplify right side
    91,712.43x = 6,441,121,646.42
  5. Step 5: Solve for x
    x = 6,441,121,646.42/91,712.43
  6. Step 6: Final answer
    x = 70,231.72

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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.