Home / 70,135.88-96,776.57-39,922.47

Finding the Fourth Proportional to 70,135.88, 96,776.57 and 39,922.47

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Solution

The fourth proportional to 70,135.88, 96,776.57 and 39,922.47 is: 55,086.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,135.88 : 96,776.57 = 39,922.47 : x
  2. Step 2: Convert to fraction form
    70,135.88/96,776.57 = 39,922.47/x
  3. Step 3: Cross multiply
    70,135.88x = 96,776.57 × 39,922.47
  4. Step 4: Simplify right side
    70,135.88x = 3,863,559,812.33
  5. Step 5: Solve for x
    x = 3,863,559,812.33/70,135.88
  6. Step 6: Final answer
    x = 55,086.78

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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.