Home / 53,630.06-80,419.50-19,872.91

Finding the Fourth Proportional to 53,630.06, 80,419.50 and 19,872.91

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Solution

The fourth proportional to 53,630.06, 80,419.50 and 19,872.91 is: 29,799.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,630.06 : 80,419.50 = 19,872.91 : x
  2. Step 2: Convert to fraction form
    53,630.06/80,419.50 = 19,872.91/x
  3. Step 3: Cross multiply
    53,630.06x = 80,419.50 × 19,872.91
  4. Step 4: Simplify right side
    53,630.06x = 1,598,169,586.27
  5. Step 5: Solve for x
    x = 1,598,169,586.27/53,630.06
  6. Step 6: Final answer
    x = 29,799.89

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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.