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Finding the Fourth Proportional to 53,937.88, 80,904.30 and 18,885.40

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Solution

The fourth proportional to 53,937.88, 80,904.30 and 18,885.40 is: 28,327.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,937.88 : 80,904.30 = 18,885.40 : x
  2. Step 2: Convert to fraction form
    53,937.88/80,904.30 = 18,885.40/x
  3. Step 3: Cross multiply
    53,937.88x = 80,904.30 × 18,885.40
  4. Step 4: Simplify right side
    53,937.88x = 1,527,910,067.22
  5. Step 5: Solve for x
    x = 1,527,910,067.22/53,937.88
  6. Step 6: Final answer
    x = 28,327.22

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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.