Home / 67,098.13-100,647.63-19,713.03

Finding the Fourth Proportional to 67,098.13, 100,647.63 and 19,713.03

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Solution

The fourth proportional to 67,098.13, 100,647.63 and 19,713.03 is: 29,569.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,098.13 : 100,647.63 = 19,713.03 : x
  2. Step 2: Convert to fraction form
    67,098.13/100,647.63 = 19,713.03/x
  3. Step 3: Cross multiply
    67,098.13x = 100,647.63 × 19,713.03
  4. Step 4: Simplify right side
    67,098.13x = 1,984,069,749.62
  5. Step 5: Solve for x
    x = 1,984,069,749.62/67,098.13
  6. Step 6: Final answer
    x = 29,569.67

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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.