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Finding the Fourth Proportional to 52,550, 72,519.04 and 39,132.80

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Solution

The fourth proportional to 52,550, 72,519.04 and 39,132.80 is: 54,003.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,550 : 72,519.04 = 39,132.80 : x
  2. Step 2: Convert to fraction form
    52,550/72,519.04 = 39,132.80/x
  3. Step 3: Cross multiply
    52,550x = 72,519.04 × 39,132.80
  4. Step 4: Simplify right side
    52,550x = 2,837,873,088.51
  5. Step 5: Solve for x
    x = 2,837,873,088.51/52,550
  6. Step 6: Final answer
    x = 54,003.29

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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.