Home / 52,127.30-78,243.04-28,764.74

Finding the Fourth Proportional to 52,127.30, 78,243.04 and 28,764.74

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Solution

The fourth proportional to 52,127.30, 78,243.04 and 28,764.74 is: 43,175.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,127.30 : 78,243.04 = 28,764.74 : x
  2. Step 2: Convert to fraction form
    52,127.30/78,243.04 = 28,764.74/x
  3. Step 3: Cross multiply
    52,127.30x = 78,243.04 × 28,764.74
  4. Step 4: Simplify right side
    52,127.30x = 2,250,640,702.41
  5. Step 5: Solve for x
    x = 2,250,640,702.41/52,127.30
  6. Step 6: Final answer
    x = 43,175.85

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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.