Home / 87,954.46-121,377.58-47,668.21

Finding the Fourth Proportional to 87,954.46, 121,377.58 and 47,668.21

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Solution

The fourth proportional to 87,954.46, 121,377.58 and 47,668.21 is: 65,782.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,954.46 : 121,377.58 = 47,668.21 : x
  2. Step 2: Convert to fraction form
    87,954.46/121,377.58 = 47,668.21/x
  3. Step 3: Cross multiply
    87,954.46x = 121,377.58 × 47,668.21
  4. Step 4: Simplify right side
    87,954.46x = 5,785,852,124.45
  5. Step 5: Solve for x
    x = 5,785,852,124.45/87,954.46
  6. Step 6: Final answer
    x = 65,782.36

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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.