Home / 70,278.36-96,926.40-50,128.80

Finding the Fourth Proportional to 70,278.36, 96,926.40 and 50,128.80

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Solution

The fourth proportional to 70,278.36, 96,926.40 and 50,128.80 is: 69,136.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,278.36 : 96,926.40 = 50,128.80 : x
  2. Step 2: Convert to fraction form
    70,278.36/96,926.40 = 50,128.80/x
  3. Step 3: Cross multiply
    70,278.36x = 96,926.40 × 50,128.80
  4. Step 4: Simplify right side
    70,278.36x = 4,858,804,120.32
  5. Step 5: Solve for x
    x = 4,858,804,120.32/70,278.36
  6. Step 6: Final answer
    x = 69,136.56

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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.