Home / 45,094.88-67,631.36-18,785.28

Finding the Fourth Proportional to 45,094.88, 67,631.36 and 18,785.28

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Solution

The fourth proportional to 45,094.88, 67,631.36 and 18,785.28 is: 28,173.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,094.88 : 67,631.36 = 18,785.28 : x
  2. Step 2: Convert to fraction form
    45,094.88/67,631.36 = 18,785.28/x
  3. Step 3: Cross multiply
    45,094.88x = 67,631.36 × 18,785.28
  4. Step 4: Simplify right side
    45,094.88x = 1,270,474,034.38
  5. Step 5: Solve for x
    x = 1,270,474,034.38/45,094.88
  6. Step 6: Final answer
    x = 28,173.35

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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.