Home / 87,751.49-121,096.71-47,465.20

Finding the Fourth Proportional to 87,751.49, 121,096.71 and 47,465.20

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Solution

The fourth proportional to 87,751.49, 121,096.71 and 47,465.20 is: 65,501.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,751.49 : 121,096.71 = 47,465.20 : x
  2. Step 2: Convert to fraction form
    87,751.49/121,096.71 = 47,465.20/x
  3. Step 3: Cross multiply
    87,751.49x = 121,096.71 × 47,465.20
  4. Step 4: Simplify right side
    87,751.49x = 5,747,879,029.69
  5. Step 5: Solve for x
    x = 5,747,879,029.69/87,751.49
  6. Step 6: Final answer
    x = 65,501.79

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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.