Home / 45,118.20-67,666.34-18,823.16

Finding the Fourth Proportional to 45,118.20, 67,666.34 and 18,823.16

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Solution

The fourth proportional to 45,118.20, 67,666.34 and 18,823.16 is: 28,230.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,118.20 : 67,666.34 = 18,823.16 : x
  2. Step 2: Convert to fraction form
    45,118.20/67,666.34 = 18,823.16/x
  3. Step 3: Cross multiply
    45,118.20x = 67,666.34 × 18,823.16
  4. Step 4: Simplify right side
    45,118.20x = 1,273,694,344.43
  5. Step 5: Solve for x
    x = 1,273,694,344.43/45,118.20
  6. Step 6: Final answer
    x = 28,230.17

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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.