Home / 56,981.43-85,464.18-19,540.89

Finding the Fourth Proportional to 56,981.43, 85,464.18 and 19,540.89

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Solution

The fourth proportional to 56,981.43, 85,464.18 and 19,540.89 is: 29,308.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,981.43 : 85,464.18 = 19,540.89 : x
  2. Step 2: Convert to fraction form
    56,981.43/85,464.18 = 19,540.89/x
  3. Step 3: Cross multiply
    56,981.43x = 85,464.18 × 19,540.89
  4. Step 4: Simplify right side
    56,981.43x = 1,670,046,140.32
  5. Step 5: Solve for x
    x = 1,670,046,140.32/56,981.43
  6. Step 6: Final answer
    x = 29,308.60

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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.