Home / 64,450.95-96,676.42-20,081.28

Finding the Fourth Proportional to 64,450.95, 96,676.42 and 20,081.28

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Solution

The fourth proportional to 64,450.95, 96,676.42 and 20,081.28 is: 30,121.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,450.95 : 96,676.42 = 20,081.28 : x
  2. Step 2: Convert to fraction form
    64,450.95/96,676.42 = 20,081.28/x
  3. Step 3: Cross multiply
    64,450.95x = 96,676.42 × 20,081.28
  4. Step 4: Simplify right side
    64,450.95x = 1,941,386,259.42
  5. Step 5: Solve for x
    x = 1,941,386,259.42/64,450.95
  6. Step 6: Final answer
    x = 30,121.92

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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.