Home / 87,619.17-120,914.37-47,332.92

Finding the Fourth Proportional to 87,619.17, 120,914.37 and 47,332.92

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Solution

The fourth proportional to 87,619.17, 120,914.37 and 47,332.92 is: 65,319.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,619.17 : 120,914.37 = 47,332.92 : x
  2. Step 2: Convert to fraction form
    87,619.17/120,914.37 = 47,332.92/x
  3. Step 3: Cross multiply
    87,619.17x = 120,914.37 × 47,332.92
  4. Step 4: Simplify right side
    87,619.17x = 5,723,230,202.06
  5. Step 5: Solve for x
    x = 5,723,230,202.06/87,619.17
  6. Step 6: Final answer
    x = 65,319.38

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1.5x scale

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.