Home / 45,279.05-67,903.20-15,689.98

Finding the Fourth Proportional to 45,279.05, 67,903.20 and 15,689.98

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Solution

The fourth proportional to 45,279.05, 67,903.20 and 15,689.98 is: 23,529.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,279.05 : 67,903.20 = 15,689.98 : x
  2. Step 2: Convert to fraction form
    45,279.05/67,903.20 = 15,689.98/x
  3. Step 3: Cross multiply
    45,279.05x = 67,903.20 × 15,689.98
  4. Step 4: Simplify right side
    45,279.05x = 1,065,399,680.18
  5. Step 5: Solve for x
    x = 1,065,399,680.18/45,279.05
  6. Step 6: Final answer
    x = 23,529.64

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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.