Home / 78,430.14-117,652.26-22,270.80

Finding the Fourth Proportional to 78,430.14, 117,652.26 and 22,270.80

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Solution

The fourth proportional to 78,430.14, 117,652.26 and 22,270.80 is: 33,408.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,430.14 : 117,652.26 = 22,270.80 : x
  2. Step 2: Convert to fraction form
    78,430.14/117,652.26 = 22,270.80/x
  3. Step 3: Cross multiply
    78,430.14x = 117,652.26 × 22,270.80
  4. Step 4: Simplify right side
    78,430.14x = 2,620,209,952.01
  5. Step 5: Solve for x
    x = 2,620,209,952.01/78,430.14
  6. Step 6: Final answer
    x = 33,408.20

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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.