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Finding the Fourth Proportional to 61,866.24, 92,813.76 and 20,310.72

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Solution

The fourth proportional to 61,866.24, 92,813.76 and 20,310.72 is: 30,470.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,866.24 : 92,813.76 = 20,310.72 : x
  2. Step 2: Convert to fraction form
    61,866.24/92,813.76 = 20,310.72/x
  3. Step 3: Cross multiply
    61,866.24x = 92,813.76 × 20,310.72
  4. Step 4: Simplify right side
    61,866.24x = 1,885,114,291.51
  5. Step 5: Solve for x
    x = 1,885,114,291.51/61,866.24
  6. Step 6: Final answer
    x = 30,470.81

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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.