Home / 87,114.40-120,214.47-49,387.84

Finding the Fourth Proportional to 87,114.40, 120,214.47 and 49,387.84

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Solution

The fourth proportional to 87,114.40, 120,214.47 and 49,387.84 is: 68,153.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,114.40 : 120,214.47 = 49,387.84 : x
  2. Step 2: Convert to fraction form
    87,114.40/120,214.47 = 49,387.84/x
  3. Step 3: Cross multiply
    87,114.40x = 120,214.47 × 49,387.84
  4. Step 4: Simplify right side
    87,114.40x = 5,937,133,010.04
  5. Step 5: Solve for x
    x = 5,937,133,010.04/87,114.40
  6. Step 6: Final answer
    x = 68,153.29

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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.