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Finding the Fourth Proportional to 56,964, 85,443.42 and 17,519.40

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Solution

The fourth proportional to 56,964, 85,443.42 and 17,519.40 is: 26,278.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,964 : 85,443.42 = 17,519.40 : x
  2. Step 2: Convert to fraction form
    56,964/85,443.42 = 17,519.40/x
  3. Step 3: Cross multiply
    56,964x = 85,443.42 × 17,519.40
  4. Step 4: Simplify right side
    56,964x = 1,496,917,452.35
  5. Step 5: Solve for x
    x = 1,496,917,452.35/56,964
  6. Step 6: Final answer
    x = 26,278.31

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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.