Home / 53,964.72-80,920.62-18,899.28

Finding the Fourth Proportional to 53,964.72, 80,920.62 and 18,899.28

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Solution

The fourth proportional to 53,964.72, 80,920.62 and 18,899.28 is: 28,339.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,964.72 : 80,920.62 = 18,899.28 : x
  2. Step 2: Convert to fraction form
    53,964.72/80,920.62 = 18,899.28/x
  3. Step 3: Cross multiply
    53,964.72x = 80,920.62 × 18,899.28
  4. Step 4: Simplify right side
    53,964.72x = 1,529,341,455.15
  5. Step 5: Solve for x
    x = 1,529,341,455.15/53,964.72
  6. Step 6: Final answer
    x = 28,339.65

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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.