Home / 61,138.20-84,374.78-34,282.48

Finding the Fourth Proportional to 61,138.20, 84,374.78 and 34,282.48

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Solution

The fourth proportional to 61,138.20, 84,374.78 and 34,282.48 is: 47,312.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,138.20 : 84,374.78 = 34,282.48 : x
  2. Step 2: Convert to fraction form
    61,138.20/84,374.78 = 34,282.48/x
  3. Step 3: Cross multiply
    61,138.20x = 84,374.78 × 34,282.48
  4. Step 4: Simplify right side
    61,138.20x = 2,892,576,707.85
  5. Step 5: Solve for x
    x = 2,892,576,707.85/61,138.20
  6. Step 6: Final answer
    x = 47,312.10

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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.