Home / 64,485.76-96,715.68-20,105.32

Finding the Fourth Proportional to 64,485.76, 96,715.68 and 20,105.32

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Solution

The fourth proportional to 64,485.76, 96,715.68 and 20,105.32 is: 30,153.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,485.76 : 96,715.68 = 20,105.32 : x
  2. Step 2: Convert to fraction form
    64,485.76/96,715.68 = 20,105.32/x
  3. Step 3: Cross multiply
    64,485.76x = 96,715.68 × 20,105.32
  4. Step 4: Simplify right side
    64,485.76x = 1,944,499,695.42
  5. Step 5: Solve for x
    x = 1,944,499,695.42/64,485.76
  6. Step 6: Final answer
    x = 30,153.94

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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.