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Finding the Fourth Proportional to 50,834.57, 70,134.90 and 30,683.79

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Solution

The fourth proportional to 50,834.57, 70,134.90 and 30,683.79 is: 42,333.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,834.57 : 70,134.90 = 30,683.79 : x
  2. Step 2: Convert to fraction form
    50,834.57/70,134.90 = 30,683.79/x
  3. Step 3: Cross multiply
    50,834.57x = 70,134.90 × 30,683.79
  4. Step 4: Simplify right side
    50,834.57x = 2,152,004,428.21
  5. Step 5: Solve for x
    x = 2,152,004,428.21/50,834.57
  6. Step 6: Final answer
    x = 42,333.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.