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Finding the Fourth Proportional to 50,453.60, 75,680.40 and 45,010.40

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Solution

The fourth proportional to 50,453.60, 75,680.40 and 45,010.40 is: 67,515.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,453.60 : 75,680.40 = 45,010.40 : x
  2. Step 2: Convert to fraction form
    50,453.60/75,680.40 = 45,010.40/x
  3. Step 3: Cross multiply
    50,453.60x = 75,680.40 × 45,010.40
  4. Step 4: Simplify right side
    50,453.60x = 3,406,405,076.16
  5. Step 5: Solve for x
    x = 3,406,405,076.16/50,453.60
  6. Step 6: Final answer
    x = 67,515.60

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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.