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Finding the Fourth Proportional to 53,937.51, 80,906.27 and 18,869.10

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Solution

The fourth proportional to 53,937.51, 80,906.27 and 18,869.10 is: 28,303.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,937.51 : 80,906.27 = 18,869.10 : x
  2. Step 2: Convert to fraction form
    53,937.51/80,906.27 = 18,869.10/x
  3. Step 3: Cross multiply
    53,937.51x = 80,906.27 × 18,869.10
  4. Step 4: Simplify right side
    53,937.51x = 1,526,628,404.91
  5. Step 5: Solve for x
    x = 1,526,628,404.91/53,937.51
  6. Step 6: Final answer
    x = 28,303.65

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Similar ratio
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1.5x scale

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.