Home / 64,499.71-96,746.13-20,121.37

Finding the Fourth Proportional to 64,499.71, 96,746.13 and 20,121.37

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Solution

The fourth proportional to 64,499.71, 96,746.13 and 20,121.37 is: 30,180.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,499.71 : 96,746.13 = 20,121.37 : x
  2. Step 2: Convert to fraction form
    64,499.71/96,746.13 = 20,121.37/x
  3. Step 3: Cross multiply
    64,499.71x = 96,746.13 × 20,121.37
  4. Step 4: Simplify right side
    64,499.71x = 1,946,664,677.80
  5. Step 5: Solve for x
    x = 1,946,664,677.80/64,499.71
  6. Step 6: Final answer
    x = 30,180.98

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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.