Home / 98,529.78-147,816.54-28,403.62

Finding the Fourth Proportional to 98,529.78, 147,816.54 and 28,403.62

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Solution

The fourth proportional to 98,529.78, 147,816.54 and 28,403.62 is: 42,611.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,529.78 : 147,816.54 = 28,403.62 : x
  2. Step 2: Convert to fraction form
    98,529.78/147,816.54 = 28,403.62/x
  3. Step 3: Cross multiply
    98,529.78x = 147,816.54 × 28,403.62
  4. Step 4: Simplify right side
    98,529.78x = 4,198,524,831.87
  5. Step 5: Solve for x
    x = 4,198,524,831.87/98,529.78
  6. Step 6: Final answer
    x = 42,611.73

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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.