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Finding the Fourth Proportional to 43,495.20, 65,242.80 and 36,114.40

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Solution

The fourth proportional to 43,495.20, 65,242.80 and 36,114.40 is: 54,171.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,495.20 : 65,242.80 = 36,114.40 : x
  2. Step 2: Convert to fraction form
    43,495.20/65,242.80 = 36,114.40/x
  3. Step 3: Cross multiply
    43,495.20x = 65,242.80 × 36,114.40
  4. Step 4: Simplify right side
    43,495.20x = 2,356,204,576.32
  5. Step 5: Solve for x
    x = 2,356,204,576.32/43,495.20
  6. Step 6: Final answer
    x = 54,171.60

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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.