Home / 87,739.56-121,095.47-49,509.94

Finding the Fourth Proportional to 87,739.56, 121,095.47 and 49,509.94

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Solution

The fourth proportional to 87,739.56, 121,095.47 and 49,509.94 is: 68,332.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,739.56 : 121,095.47 = 49,509.94 : x
  2. Step 2: Convert to fraction form
    87,739.56/121,095.47 = 49,509.94/x
  3. Step 3: Cross multiply
    87,739.56x = 121,095.47 × 49,509.94
  4. Step 4: Simplify right side
    87,739.56x = 5,995,429,453.97
  5. Step 5: Solve for x
    x = 5,995,429,453.97/87,739.56
  6. Step 6: Final answer
    x = 68,332.11

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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.