Home / 45,928.36-68,892.48-12,648.64

Finding the Fourth Proportional to 45,928.36, 68,892.48 and 12,648.64

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Solution

The fourth proportional to 45,928.36, 68,892.48 and 12,648.64 is: 18,972.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,928.36 : 68,892.48 = 12,648.64 : x
  2. Step 2: Convert to fraction form
    45,928.36/68,892.48 = 12,648.64/x
  3. Step 3: Cross multiply
    45,928.36x = 68,892.48 × 12,648.64
  4. Step 4: Simplify right side
    45,928.36x = 871,396,178.23
  5. Step 5: Solve for x
    x = 871,396,178.23/45,928.36
  6. Step 6: Final answer
    x = 18,972.94

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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.