Home / 45,401.72-68,057.39-21,681.54

Finding the Fourth Proportional to 45,401.72, 68,057.39 and 21,681.54

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Solution

The fourth proportional to 45,401.72, 68,057.39 and 21,681.54 is: 32,500.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,401.72 : 68,057.39 = 21,681.54 : x
  2. Step 2: Convert to fraction form
    45,401.72/68,057.39 = 21,681.54/x
  3. Step 3: Cross multiply
    45,401.72x = 68,057.39 × 21,681.54
  4. Step 4: Simplify right side
    45,401.72x = 1,475,588,741.26
  5. Step 5: Solve for x
    x = 1,475,588,741.26/45,401.72
  6. Step 6: Final answer
    x = 32,500.72

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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.