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Finding the Fourth Proportional to 56,559.78, 84,876.03 and 30,271.86

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Solution

The fourth proportional to 56,559.78, 84,876.03 and 30,271.86 is: 45,427.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,559.78 : 84,876.03 = 30,271.86 : x
  2. Step 2: Convert to fraction form
    56,559.78/84,876.03 = 30,271.86/x
  3. Step 3: Cross multiply
    56,559.78x = 84,876.03 × 30,271.86
  4. Step 4: Simplify right side
    56,559.78x = 2,569,355,297.52
  5. Step 5: Solve for x
    x = 2,569,355,297.52/56,559.78
  6. Step 6: Final answer
    x = 45,427.25

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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.