Home / 50,857.94-70,167.66-30,720.80

Finding the Fourth Proportional to 50,857.94, 70,167.66 and 30,720.80

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Solution

The fourth proportional to 50,857.94, 70,167.66 and 30,720.80 is: 42,384.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,857.94 : 70,167.66 = 30,720.80 : x
  2. Step 2: Convert to fraction form
    50,857.94/70,167.66 = 30,720.80/x
  3. Step 3: Cross multiply
    50,857.94x = 70,167.66 × 30,720.80
  4. Step 4: Simplify right side
    50,857.94x = 2,155,606,649.33
  5. Step 5: Solve for x
    x = 2,155,606,649.33/50,857.94
  6. Step 6: Final answer
    x = 42,384.86

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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.