Home / 87,642.23-120,946.37-47,356.07

Finding the Fourth Proportional to 87,642.23, 120,946.37 and 47,356.07

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Solution

The fourth proportional to 87,642.23, 120,946.37 and 47,356.07 is: 65,351.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,642.23 : 120,946.37 = 47,356.07 : x
  2. Step 2: Convert to fraction form
    87,642.23/120,946.37 = 47,356.07/x
  3. Step 3: Cross multiply
    87,642.23x = 120,946.37 × 47,356.07
  4. Step 4: Simplify right side
    87,642.23x = 5,727,543,922.45
  5. Step 5: Solve for x
    x = 5,727,543,922.45/87,642.23
  6. Step 6: Final answer
    x = 65,351.42

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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.