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Finding the Fourth Proportional to 75,054.88, 112,580.16 and 18,894.88

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Solution

The fourth proportional to 75,054.88, 112,580.16 and 18,894.88 is: 28,341.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,054.88 : 112,580.16 = 18,894.88 : x
  2. Step 2: Convert to fraction form
    75,054.88/112,580.16 = 18,894.88/x
  3. Step 3: Cross multiply
    75,054.88x = 112,580.16 × 18,894.88
  4. Step 4: Simplify right side
    75,054.88x = 2,127,188,613.58
  5. Step 5: Solve for x
    x = 2,127,188,613.58/75,054.88
  6. Step 6: Final answer
    x = 28,341.78

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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.