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Finding the Fourth Proportional to 56,368.80, 84,650.40 and 39,844.80

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Solution

The fourth proportional to 56,368.80, 84,650.40 and 39,844.80 is: 59,835.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,368.80 : 84,650.40 = 39,844.80 : x
  2. Step 2: Convert to fraction form
    56,368.80/84,650.40 = 39,844.80/x
  3. Step 3: Cross multiply
    56,368.80x = 84,650.40 × 39,844.80
  4. Step 4: Simplify right side
    56,368.80x = 3,372,878,257.92
  5. Step 5: Solve for x
    x = 3,372,878,257.92/56,368.80
  6. Step 6: Final answer
    x = 59,835.91

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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.