Home / 45,607.68-68,371.56-19,331.28

Finding the Fourth Proportional to 45,607.68, 68,371.56 and 19,331.28

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Solution

The fourth proportional to 45,607.68, 68,371.56 and 19,331.28 is: 28,979.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,607.68 : 68,371.56 = 19,331.28 : x
  2. Step 2: Convert to fraction form
    45,607.68/68,371.56 = 19,331.28/x
  3. Step 3: Cross multiply
    45,607.68x = 68,371.56 × 19,331.28
  4. Step 4: Simplify right side
    45,607.68x = 1,321,709,770.40
  5. Step 5: Solve for x
    x = 1,321,709,770.40/45,607.68
  6. Step 6: Final answer
    x = 28,979.98

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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.