Home / 40,305.34-60,459.35-18,118.78

Finding the Fourth Proportional to 40,305.34, 60,459.35 and 18,118.78

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Solution

The fourth proportional to 40,305.34, 60,459.35 and 18,118.78 is: 27,178.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,305.34 : 60,459.35 = 18,118.78 : x
  2. Step 2: Convert to fraction form
    40,305.34/60,459.35 = 18,118.78/x
  3. Step 3: Cross multiply
    40,305.34x = 60,459.35 × 18,118.78
  4. Step 4: Simplify right side
    40,305.34x = 1,095,449,359.30
  5. Step 5: Solve for x
    x = 1,095,449,359.30/40,305.34
  6. Step 6: Final answer
    x = 27,178.77

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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.