Home / 51,278.44-70,796.28-39,318.80

Finding the Fourth Proportional to 51,278.44, 70,796.28 and 39,318.80

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Solution

The fourth proportional to 51,278.44, 70,796.28 and 39,318.80 is: 54,284.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,278.44 : 70,796.28 = 39,318.80 : x
  2. Step 2: Convert to fraction form
    51,278.44/70,796.28 = 39,318.80/x
  3. Step 3: Cross multiply
    51,278.44x = 70,796.28 × 39,318.80
  4. Step 4: Simplify right side
    51,278.44x = 2,783,624,774.06
  5. Step 5: Solve for x
    x = 2,783,624,774.06/51,278.44
  6. Step 6: Final answer
    x = 54,284.51

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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.