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Finding the Fourth Proportional to 77,408.40, 116,132.08 and 22,004.40

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Solution

The fourth proportional to 77,408.40, 116,132.08 and 22,004.40 is: 33,012.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,408.40 : 116,132.08 = 22,004.40 : x
  2. Step 2: Convert to fraction form
    77,408.40/116,132.08 = 22,004.40/x
  3. Step 3: Cross multiply
    77,408.40x = 116,132.08 × 22,004.40
  4. Step 4: Simplify right side
    77,408.40x = 2,555,416,741.15
  5. Step 5: Solve for x
    x = 2,555,416,741.15/77,408.40
  6. Step 6: Final answer
    x = 33,012.14

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1.5x scale

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.