Home / 87,329.76-130,981.88-42,944.60

Finding the Fourth Proportional to 87,329.76, 130,981.88 and 42,944.60

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Solution

The fourth proportional to 87,329.76, 130,981.88 and 42,944.60 is: 64,410.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,329.76 : 130,981.88 = 42,944.60 : x
  2. Step 2: Convert to fraction form
    87,329.76/130,981.88 = 42,944.60/x
  3. Step 3: Cross multiply
    87,329.76x = 130,981.88 × 42,944.60
  4. Step 4: Simplify right side
    87,329.76x = 5,624,964,443.85
  5. Step 5: Solve for x
    x = 5,624,964,443.85/87,329.76
  6. Step 6: Final answer
    x = 64,410.63

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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.