Home / 64,278.39-96,422.10-19,899.30

Finding the Fourth Proportional to 64,278.39, 96,422.10 and 19,899.30

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Solution

The fourth proportional to 64,278.39, 96,422.10 and 19,899.30 is: 29,850.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,278.39 : 96,422.10 = 19,899.30 : x
  2. Step 2: Convert to fraction form
    64,278.39/96,422.10 = 19,899.30/x
  3. Step 3: Cross multiply
    64,278.39x = 96,422.10 × 19,899.30
  4. Step 4: Simplify right side
    64,278.39x = 1,918,732,294.53
  5. Step 5: Solve for x
    x = 1,918,732,294.53/64,278.39
  6. Step 6: Final answer
    x = 29,850.35

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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.