Home / 91,807.20-126,773.64-87,083.28

Finding the Fourth Proportional to 91,807.20, 126,773.64 and 87,083.28

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Solution

The fourth proportional to 91,807.20, 126,773.64 and 87,083.28 is: 120,250.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,807.20 : 126,773.64 = 87,083.28 : x
  2. Step 2: Convert to fraction form
    91,807.20/126,773.64 = 87,083.28/x
  3. Step 3: Cross multiply
    91,807.20x = 126,773.64 × 87,083.28
  4. Step 4: Simplify right side
    91,807.20x = 11,039,864,388.74
  5. Step 5: Solve for x
    x = 11,039,864,388.74/91,807.20
  6. Step 6: Final answer
    x = 120,250.53

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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.