Home / 40,837.08-61,289.16-21,121.68

Finding the Fourth Proportional to 40,837.08, 61,289.16 and 21,121.68

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Solution

The fourth proportional to 40,837.08, 61,289.16 and 21,121.68 is: 31,699.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,837.08 : 61,289.16 = 21,121.68 : x
  2. Step 2: Convert to fraction form
    40,837.08/61,289.16 = 21,121.68/x
  3. Step 3: Cross multiply
    40,837.08x = 61,289.16 × 21,121.68
  4. Step 4: Simplify right side
    40,837.08x = 1,294,530,024.99
  5. Step 5: Solve for x
    x = 1,294,530,024.99/40,837.08
  6. Step 6: Final answer
    x = 31,699.87

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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.