Home / 61,108.83-84,172.43-43,172.69

Finding the Fourth Proportional to 61,108.83, 84,172.43 and 43,172.69

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Solution

The fourth proportional to 61,108.83, 84,172.43 and 43,172.69 is: 59,466.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,108.83 : 84,172.43 = 43,172.69 : x
  2. Step 2: Convert to fraction form
    61,108.83/84,172.43 = 43,172.69/x
  3. Step 3: Cross multiply
    61,108.83x = 84,172.43 × 43,172.69
  4. Step 4: Simplify right side
    61,108.83x = 3,633,950,226.94
  5. Step 5: Solve for x
    x = 3,633,950,226.94/61,108.83
  6. Step 6: Final answer
    x = 59,466.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.