Home / 45,000.10-67,499.23-11,719.43

Finding the Fourth Proportional to 45,000.10, 67,499.23 and 11,719.43

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Solution

The fourth proportional to 45,000.10, 67,499.23 and 11,719.43 is: 17,578.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,000.10 : 67,499.23 = 11,719.43 : x
  2. Step 2: Convert to fraction form
    45,000.10/67,499.23 = 11,719.43/x
  3. Step 3: Cross multiply
    45,000.10x = 67,499.23 × 11,719.43
  4. Step 4: Simplify right side
    45,000.10x = 791,052,501.04
  5. Step 5: Solve for x
    x = 791,052,501.04/45,000.10
  6. Step 6: Final answer
    x = 17,578.91

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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.