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Finding the Fourth Proportional to 52,637.92, 72,640.52 and 28,764.96

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Solution

The fourth proportional to 52,637.92, 72,640.52 and 28,764.96 is: 39,695.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,637.92 : 72,640.52 = 28,764.96 : x
  2. Step 2: Convert to fraction form
    52,637.92/72,640.52 = 28,764.96/x
  3. Step 3: Cross multiply
    52,637.92x = 72,640.52 × 28,764.96
  4. Step 4: Simplify right side
    52,637.92x = 2,089,501,652.18
  5. Step 5: Solve for x
    x = 2,089,501,652.18/52,637.92
  6. Step 6: Final answer
    x = 39,695.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.