Home / 56,837.78-85,281.24-30,511.78

Finding the Fourth Proportional to 56,837.78, 85,281.24 and 30,511.78

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Solution

The fourth proportional to 56,837.78, 85,281.24 and 30,511.78 is: 45,780.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,837.78 : 85,281.24 = 30,511.78 : x
  2. Step 2: Convert to fraction form
    56,837.78/85,281.24 = 30,511.78/x
  3. Step 3: Cross multiply
    56,837.78x = 85,281.24 × 30,511.78
  4. Step 4: Simplify right side
    56,837.78x = 2,602,082,433.01
  5. Step 5: Solve for x
    x = 2,602,082,433.01/56,837.78
  6. Step 6: Final answer
    x = 45,780.86

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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.