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Finding the Fourth Proportional to 50,990.87, 70,370.54 and 28,330.01

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Solution

The fourth proportional to 50,990.87, 70,370.54 and 28,330.01 is: 39,097.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,990.87 : 70,370.54 = 28,330.01 : x
  2. Step 2: Convert to fraction form
    50,990.87/70,370.54 = 28,330.01/x
  3. Step 3: Cross multiply
    50,990.87x = 70,370.54 × 28,330.01
  4. Step 4: Simplify right side
    50,990.87x = 1,993,597,608.40
  5. Step 5: Solve for x
    x = 1,993,597,608.40/50,990.87
  6. Step 6: Final answer
    x = 39,097.15

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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.