Home / 58,005.78-87,042.18-31,351.86

Finding the Fourth Proportional to 58,005.78, 87,042.18 and 31,351.86

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Solution

The fourth proportional to 58,005.78, 87,042.18 and 31,351.86 is: 47,045.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,005.78 : 87,042.18 = 31,351.86 : x
  2. Step 2: Convert to fraction form
    58,005.78/87,042.18 = 31,351.86/x
  3. Step 3: Cross multiply
    58,005.78x = 87,042.18 × 31,351.86
  4. Step 4: Simplify right side
    58,005.78x = 2,728,934,241.45
  5. Step 5: Solve for x
    x = 2,728,934,241.45/58,005.78
  6. Step 6: Final answer
    x = 47,045.90

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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.