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Finding the Fourth Proportional to 77,482.50, 106,804.54 and 50,611.56

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Solution

The fourth proportional to 77,482.50, 106,804.54 and 50,611.56 is: 69,764.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,482.50 : 106,804.54 = 50,611.56 : x
  2. Step 2: Convert to fraction form
    77,482.50/106,804.54 = 50,611.56/x
  3. Step 3: Cross multiply
    77,482.50x = 106,804.54 × 50,611.56
  4. Step 4: Simplify right side
    77,482.50x = 5,405,544,384.48
  5. Step 5: Solve for x
    x = 5,405,544,384.48/77,482.50
  6. Step 6: Final answer
    x = 69,764.71

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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.