Home / 87,894.34-121,315.89-50,190.46

Finding the Fourth Proportional to 87,894.34, 121,315.89 and 50,190.46

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Solution

The fourth proportional to 87,894.34, 121,315.89 and 50,190.46 is: 69,275.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,894.34 : 121,315.89 = 50,190.46 : x
  2. Step 2: Convert to fraction form
    87,894.34/121,315.89 = 50,190.46/x
  3. Step 3: Cross multiply
    87,894.34x = 121,315.89 × 50,190.46
  4. Step 4: Simplify right side
    87,894.34x = 6,088,900,324.41
  5. Step 5: Solve for x
    x = 6,088,900,324.41/87,894.34
  6. Step 6: Final answer
    x = 69,275.23

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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.