Home / 53,396.10-80,099.58-18,331.20

Finding the Fourth Proportional to 53,396.10, 80,099.58 and 18,331.20

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Solution

The fourth proportional to 53,396.10, 80,099.58 and 18,331.20 is: 27,498.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,396.10 : 80,099.58 = 18,331.20 : x
  2. Step 2: Convert to fraction form
    53,396.10/80,099.58 = 18,331.20/x
  3. Step 3: Cross multiply
    53,396.10x = 80,099.58 × 18,331.20
  4. Step 4: Simplify right side
    53,396.10x = 1,468,321,420.90
  5. Step 5: Solve for x
    x = 1,468,321,420.90/53,396.10
  6. Step 6: Final answer
    x = 27,498.66

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1.5x scale

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.