Home / 45,470.48-68,209.72-13,887.67

Finding the Fourth Proportional to 45,470.48, 68,209.72 and 13,887.67

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Solution

The fourth proportional to 45,470.48, 68,209.72 and 13,887.67 is: 20,832.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,470.48 : 68,209.72 = 13,887.67 : x
  2. Step 2: Convert to fraction form
    45,470.48/68,209.72 = 13,887.67/x
  3. Step 3: Cross multiply
    45,470.48x = 68,209.72 × 13,887.67
  4. Step 4: Simplify right side
    45,470.48x = 947,274,082.15
  5. Step 5: Solve for x
    x = 947,274,082.15/45,470.48
  6. Step 6: Final answer
    x = 20,832.73

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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.