Home / 53,127.78-79,691.40-21,537.38

Finding the Fourth Proportional to 53,127.78, 79,691.40 and 21,537.38

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Solution

The fourth proportional to 53,127.78, 79,691.40 and 21,537.38 is: 32,305.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,127.78 : 79,691.40 = 21,537.38 : x
  2. Step 2: Convert to fraction form
    53,127.78/79,691.40 = 21,537.38/x
  3. Step 3: Cross multiply
    53,127.78x = 79,691.40 × 21,537.38
  4. Step 4: Simplify right side
    53,127.78x = 1,716,343,566.08
  5. Step 5: Solve for x
    x = 1,716,343,566.08/53,127.78
  6. Step 6: Final answer
    x = 32,305.95

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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.