Home / 80,899.54-121,349.22-37,618.18

Finding the Fourth Proportional to 80,899.54, 121,349.22 and 37,618.18

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Solution

The fourth proportional to 80,899.54, 121,349.22 and 37,618.18 is: 56,427.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,899.54 : 121,349.22 = 37,618.18 : x
  2. Step 2: Convert to fraction form
    80,899.54/121,349.22 = 37,618.18/x
  3. Step 3: Cross multiply
    80,899.54x = 121,349.22 × 37,618.18
  4. Step 4: Simplify right side
    80,899.54x = 4,564,936,800.82
  5. Step 5: Solve for x
    x = 4,564,936,800.82/80,899.54
  6. Step 6: Final answer
    x = 56,427.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.