Home / 91,984.78-126,935.40-56,234.62

Finding the Fourth Proportional to 91,984.78, 126,935.40 and 56,234.62

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Solution

The fourth proportional to 91,984.78, 126,935.40 and 56,234.62 is: 77,601.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,984.78 : 126,935.40 = 56,234.62 : x
  2. Step 2: Convert to fraction form
    91,984.78/126,935.40 = 56,234.62/x
  3. Step 3: Cross multiply
    91,984.78x = 126,935.40 × 56,234.62
  4. Step 4: Simplify right side
    91,984.78x = 7,138,163,983.55
  5. Step 5: Solve for x
    x = 7,138,163,983.55/91,984.78
  6. Step 6: Final answer
    x = 77,601.58

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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.