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Finding the Fourth Proportional to 50,775.40, 75,947.10 and 45,548.20

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Solution

The fourth proportional to 50,775.40, 75,947.10 and 45,548.20 is: 68,128.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,775.40 : 75,947.10 = 45,548.20 : x
  2. Step 2: Convert to fraction form
    50,775.40/75,947.10 = 45,548.20/x
  3. Step 3: Cross multiply
    50,775.40x = 75,947.10 × 45,548.20
  4. Step 4: Simplify right side
    50,775.40x = 3,459,253,700.22
  5. Step 5: Solve for x
    x = 3,459,253,700.22/50,775.40
  6. Step 6: Final answer
    x = 68,128.54

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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.