Home / 53,103.16-79,630.22-19,814.36

Finding the Fourth Proportional to 53,103.16, 79,630.22 and 19,814.36

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Solution

The fourth proportional to 53,103.16, 79,630.22 and 19,814.36 is: 29,712.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,103.16 : 79,630.22 = 19,814.36 : x
  2. Step 2: Convert to fraction form
    53,103.16/79,630.22 = 19,814.36/x
  3. Step 3: Cross multiply
    53,103.16x = 79,630.22 × 19,814.36
  4. Step 4: Simplify right side
    53,103.16x = 1,577,821,845.96
  5. Step 5: Solve for x
    x = 1,577,821,845.96/53,103.16
  6. Step 6: Final answer
    x = 29,712.39

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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.