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Finding the Fourth Proportional to 55,605.60, 83,408.40 and 49,190.40

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Solution

The fourth proportional to 55,605.60, 83,408.40 and 49,190.40 is: 73,785.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,605.60 : 83,408.40 = 49,190.40 : x
  2. Step 2: Convert to fraction form
    55,605.60/83,408.40 = 49,190.40/x
  3. Step 3: Cross multiply
    55,605.60x = 83,408.40 × 49,190.40
  4. Step 4: Simplify right side
    55,605.60x = 4,102,892,559.36
  5. Step 5: Solve for x
    x = 4,102,892,559.36/55,605.60
  6. Step 6: Final answer
    x = 73,785.60

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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.