Home / 42,132.75-63,247.73-21,399.99

Finding the Fourth Proportional to 42,132.75, 63,247.73 and 21,399.99

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Solution

The fourth proportional to 42,132.75, 63,247.73 and 21,399.99 is: 32,124.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,132.75 : 63,247.73 = 21,399.99 : x
  2. Step 2: Convert to fraction form
    42,132.75/63,247.73 = 21,399.99/x
  3. Step 3: Cross multiply
    42,132.75x = 63,247.73 × 21,399.99
  4. Step 4: Simplify right side
    42,132.75x = 1,353,500,682.52
  5. Step 5: Solve for x
    x = 1,353,500,682.52/42,132.75
  6. Step 6: Final answer
    x = 32,124.67

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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.