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Finding the Fourth Proportional to 61,405.30, 92,150.24 and 21,424.51

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Solution

The fourth proportional to 61,405.30, 92,150.24 and 21,424.51 is: 32,151.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,405.30 : 92,150.24 = 21,424.51 : x
  2. Step 2: Convert to fraction form
    61,405.30/92,150.24 = 21,424.51/x
  3. Step 3: Cross multiply
    61,405.30x = 92,150.24 × 21,424.51
  4. Step 4: Simplify right side
    61,405.30x = 1,974,273,738.38
  5. Step 5: Solve for x
    x = 1,974,273,738.38/61,405.30
  6. Step 6: Final answer
    x = 32,151.52

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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.