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Finding the Fourth Proportional to 52,637.83, 72,640.05 and 28,764.65

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Solution

The fourth proportional to 52,637.83, 72,640.05 and 28,764.65 is: 39,695.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,637.83 : 72,640.05 = 28,764.65 : x
  2. Step 2: Convert to fraction form
    52,637.83/72,640.05 = 28,764.65/x
  3. Step 3: Cross multiply
    52,637.83x = 72,640.05 × 28,764.65
  4. Step 4: Simplify right side
    52,637.83x = 2,089,465,614.23
  5. Step 5: Solve for x
    x = 2,089,465,614.23/52,637.83
  6. Step 6: Final answer
    x = 39,695.13

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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.