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Finding the Fourth Proportional to 57,245.70, 85,868.55 and 50,903.40

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Solution

The fourth proportional to 57,245.70, 85,868.55 and 50,903.40 is: 76,355.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,245.70 : 85,868.55 = 50,903.40 : x
  2. Step 2: Convert to fraction form
    57,245.70/85,868.55 = 50,903.40/x
  3. Step 3: Cross multiply
    57,245.70x = 85,868.55 × 50,903.40
  4. Step 4: Simplify right side
    57,245.70x = 4,371,001,148.07
  5. Step 5: Solve for x
    x = 4,371,001,148.07/57,245.70
  6. Step 6: Final answer
    x = 76,355.10

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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.