Home / 77,255.76-115,685.46-53,529.60

Finding the Fourth Proportional to 77,255.76, 115,685.46 and 53,529.60

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Solution

The fourth proportional to 77,255.76, 115,685.46 and 53,529.60 is: 80,157.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,255.76 : 115,685.46 = 53,529.60 : x
  2. Step 2: Convert to fraction form
    77,255.76/115,685.46 = 53,529.60/x
  3. Step 3: Cross multiply
    77,255.76x = 115,685.46 × 53,529.60
  4. Step 4: Simplify right side
    77,255.76x = 6,192,596,399.62
  5. Step 5: Solve for x
    x = 6,192,596,399.62/77,255.76
  6. Step 6: Final answer
    x = 80,157.08

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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.