Home / 48,814.64-67,371.40-30,911.28

Finding the Fourth Proportional to 48,814.64, 67,371.40 and 30,911.28

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Solution

The fourth proportional to 48,814.64, 67,371.40 and 30,911.28 is: 42,662.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,814.64 : 67,371.40 = 30,911.28 : x
  2. Step 2: Convert to fraction form
    48,814.64/67,371.40 = 30,911.28/x
  3. Step 3: Cross multiply
    48,814.64x = 67,371.40 × 30,911.28
  4. Step 4: Simplify right side
    48,814.64x = 2,082,536,209.39
  5. Step 5: Solve for x
    x = 2,082,536,209.39/48,814.64
  6. Step 6: Final answer
    x = 42,662.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.