Home / 56,939.73-85,461.43-30,308.09

Finding the Fourth Proportional to 56,939.73, 85,461.43 and 30,308.09

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Solution

The fourth proportional to 56,939.73, 85,461.43 and 30,308.09 is: 45,489.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,939.73 : 85,461.43 = 30,308.09 : x
  2. Step 2: Convert to fraction form
    56,939.73/85,461.43 = 30,308.09/x
  3. Step 3: Cross multiply
    56,939.73x = 85,461.43 × 30,308.09
  4. Step 4: Simplify right side
    56,939.73x = 2,590,172,385.90
  5. Step 5: Solve for x
    x = 2,590,172,385.90/56,939.73
  6. Step 6: Final answer
    x = 45,489.72

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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.