Home / 53,129.44-79,638.48-19,835.20

Finding the Fourth Proportional to 53,129.44, 79,638.48 and 19,835.20

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Solution

The fourth proportional to 53,129.44, 79,638.48 and 19,835.20 is: 29,732.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,129.44 : 79,638.48 = 19,835.20 : x
  2. Step 2: Convert to fraction form
    53,129.44/79,638.48 = 19,835.20/x
  3. Step 3: Cross multiply
    53,129.44x = 79,638.48 × 19,835.20
  4. Step 4: Simplify right side
    53,129.44x = 1,579,645,178.50
  5. Step 5: Solve for x
    x = 1,579,645,178.50/53,129.44
  6. Step 6: Final answer
    x = 29,732.01

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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.