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Finding the Fourth Proportional to 56,669.78, 85,014.40 and 17,230.88

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Solution

The fourth proportional to 56,669.78, 85,014.40 and 17,230.88 is: 25,849.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,669.78 : 85,014.40 = 17,230.88 : x
  2. Step 2: Convert to fraction form
    56,669.78/85,014.40 = 17,230.88/x
  3. Step 3: Cross multiply
    56,669.78x = 85,014.40 × 17,230.88
  4. Step 4: Simplify right side
    56,669.78x = 1,464,872,924.67
  5. Step 5: Solve for x
    x = 1,464,872,924.67/56,669.78
  6. Step 6: Final answer
    x = 25,849.28

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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.