Home / 64,478.08-96,716.68-45,424.32

Finding the Fourth Proportional to 64,478.08, 96,716.68 and 45,424.32

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Solution

The fourth proportional to 64,478.08, 96,716.68 and 45,424.32 is: 68,136.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,478.08 : 96,716.68 = 45,424.32 : x
  2. Step 2: Convert to fraction form
    64,478.08/96,716.68 = 45,424.32/x
  3. Step 3: Cross multiply
    64,478.08x = 96,716.68 × 45,424.32
  4. Step 4: Simplify right side
    64,478.08x = 4,393,289,421.66
  5. Step 5: Solve for x
    x = 4,393,289,421.66/64,478.08
  6. Step 6: Final answer
    x = 68,136.17

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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.