Home / 45,054.76-67,587-18,744.88

Finding the Fourth Proportional to 45,054.76, 67,587 and 18,744.88

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Solution

The fourth proportional to 45,054.76, 67,587 and 18,744.88 is: 28,119.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,054.76 : 67,587 = 18,744.88 : x
  2. Step 2: Convert to fraction form
    45,054.76/67,587 = 18,744.88/x
  3. Step 3: Cross multiply
    45,054.76x = 67,587 × 18,744.88
  4. Step 4: Simplify right side
    45,054.76x = 1,266,910,204.56
  5. Step 5: Solve for x
    x = 1,266,910,204.56/45,054.76
  6. Step 6: Final answer
    x = 28,119.34

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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.