Home / 87,917.37-121,325.79-47,632.22

Finding the Fourth Proportional to 87,917.37, 121,325.79 and 47,632.22

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Solution

The fourth proportional to 87,917.37, 121,325.79 and 47,632.22 is: 65,732.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,917.37 : 121,325.79 = 47,632.22 : x
  2. Step 2: Convert to fraction form
    87,917.37/121,325.79 = 47,632.22/x
  3. Step 3: Cross multiply
    87,917.37x = 121,325.79 × 47,632.22
  4. Step 4: Simplify right side
    87,917.37x = 5,779,016,747.92
  5. Step 5: Solve for x
    x = 5,779,016,747.92/87,917.37
  6. Step 6: Final answer
    x = 65,732.37

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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.