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Finding the Fourth Proportional to 56,562.88, 84,840 and 19,126.08

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Solution

The fourth proportional to 56,562.88, 84,840 and 19,126.08 is: 28,687.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,562.88 : 84,840 = 19,126.08 : x
  2. Step 2: Convert to fraction form
    56,562.88/84,840 = 19,126.08/x
  3. Step 3: Cross multiply
    56,562.88x = 84,840 × 19,126.08
  4. Step 4: Simplify right side
    56,562.88x = 1,622,656,627.20
  5. Step 5: Solve for x
    x = 1,622,656,627.20/56,562.88
  6. Step 6: Final answer
    x = 28,687.66

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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.