Home / 57,213.41-78,926.45-49,649.12

Finding the Fourth Proportional to 57,213.41, 78,926.45 and 49,649.12

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Solution

The fourth proportional to 57,213.41, 78,926.45 and 49,649.12 is: 68,491.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,213.41 : 78,926.45 = 49,649.12 : x
  2. Step 2: Convert to fraction form
    57,213.41/78,926.45 = 49,649.12/x
  3. Step 3: Cross multiply
    57,213.41x = 78,926.45 × 49,649.12
  4. Step 4: Simplify right side
    57,213.41x = 3,918,628,719.60
  5. Step 5: Solve for x
    x = 3,918,628,719.60/57,213.41
  6. Step 6: Final answer
    x = 68,491.44

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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.