Home / 53,212.18-79,819.94-19,925.90

Finding the Fourth Proportional to 53,212.18, 79,819.94 and 19,925.90

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Solution

The fourth proportional to 53,212.18, 79,819.94 and 19,925.90 is: 29,889.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,212.18 : 79,819.94 = 19,925.90 : x
  2. Step 2: Convert to fraction form
    53,212.18/79,819.94 = 19,925.90/x
  3. Step 3: Cross multiply
    53,212.18x = 79,819.94 × 19,925.90
  4. Step 4: Simplify right side
    53,212.18x = 1,590,484,142.45
  5. Step 5: Solve for x
    x = 1,590,484,142.45/53,212.18
  6. Step 6: Final answer
    x = 29,889.48

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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.