Home / 61,131.84-84,371.40-34,285.20

Finding the Fourth Proportional to 61,131.84, 84,371.40 and 34,285.20

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Solution

The fourth proportional to 61,131.84, 84,371.40 and 34,285.20 is: 47,318.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,131.84 : 84,371.40 = 34,285.20 : x
  2. Step 2: Convert to fraction form
    61,131.84/84,371.40 = 34,285.20/x
  3. Step 3: Cross multiply
    61,131.84x = 84,371.40 × 34,285.20
  4. Step 4: Simplify right side
    61,131.84x = 2,892,690,323.28
  5. Step 5: Solve for x
    x = 2,892,690,323.28/61,131.84
  6. Step 6: Final answer
    x = 47,318.88

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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.