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Finding the Fourth Proportional to 50,821.32, 70,136.03 and 30,677.94

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Solution

The fourth proportional to 50,821.32, 70,136.03 and 30,677.94 is: 42,337.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,821.32 : 70,136.03 = 30,677.94 : x
  2. Step 2: Convert to fraction form
    50,821.32/70,136.03 = 30,677.94/x
  3. Step 3: Cross multiply
    50,821.32x = 70,136.03 × 30,677.94
  4. Step 4: Simplify right side
    50,821.32x = 2,151,628,920.18
  5. Step 5: Solve for x
    x = 2,151,628,920.18/50,821.32
  6. Step 6: Final answer
    x = 42,337.13

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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.