Home / 52,606.40-78,909.21-13,163.49

Finding the Fourth Proportional to 52,606.40, 78,909.21 and 13,163.49

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Solution

The fourth proportional to 52,606.40, 78,909.21 and 13,163.49 is: 19,745.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,606.40 : 78,909.21 = 13,163.49 : x
  2. Step 2: Convert to fraction form
    52,606.40/78,909.21 = 13,163.49/x
  3. Step 3: Cross multiply
    52,606.40x = 78,909.21 × 13,163.49
  4. Step 4: Simplify right side
    52,606.40x = 1,038,720,596.74
  5. Step 5: Solve for x
    x = 1,038,720,596.74/52,606.40
  6. Step 6: Final answer
    x = 19,745.14

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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.