Home / 45,941.76-68,912.64-13,109.76

Finding the Fourth Proportional to 45,941.76, 68,912.64 and 13,109.76

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Solution

The fourth proportional to 45,941.76, 68,912.64 and 13,109.76 is: 19,664.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,941.76 : 68,912.64 = 13,109.76 : x
  2. Step 2: Convert to fraction form
    45,941.76/68,912.64 = 13,109.76/x
  3. Step 3: Cross multiply
    45,941.76x = 68,912.64 × 13,109.76
  4. Step 4: Simplify right side
    45,941.76x = 903,428,171.37
  5. Step 5: Solve for x
    x = 903,428,171.37/45,941.76
  6. Step 6: Final answer
    x = 19,664.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.