Home / 57,089.10-78,781.83-31,593.99

Finding the Fourth Proportional to 57,089.10, 78,781.83 and 31,593.99

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Solution

The fourth proportional to 57,089.10, 78,781.83 and 31,593.99 is: 43,599.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,089.10 : 78,781.83 = 31,593.99 : x
  2. Step 2: Convert to fraction form
    57,089.10/78,781.83 = 31,593.99/x
  3. Step 3: Cross multiply
    57,089.10x = 78,781.83 × 31,593.99
  4. Step 4: Simplify right side
    57,089.10x = 2,489,032,349.20
  5. Step 5: Solve for x
    x = 2,489,032,349.20/57,089.10
  6. Step 6: Final answer
    x = 43,599.08

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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.