Home / 87,691.42-120,985.48-53,664.44

Finding the Fourth Proportional to 87,691.42, 120,985.48 and 53,664.44

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Solution

The fourth proportional to 87,691.42, 120,985.48 and 53,664.44 is: 74,039.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,691.42 : 120,985.48 = 53,664.44 : x
  2. Step 2: Convert to fraction form
    87,691.42/120,985.48 = 53,664.44/x
  3. Step 3: Cross multiply
    87,691.42x = 120,985.48 × 53,664.44
  4. Step 4: Simplify right side
    87,691.42x = 6,492,617,494.48
  5. Step 5: Solve for x
    x = 6,492,617,494.48/87,691.42
  6. Step 6: Final answer
    x = 74,039.37

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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.