Home / 64,492.74-96,734.52-20,115.18

Finding the Fourth Proportional to 64,492.74, 96,734.52 and 20,115.18

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Solution

The fourth proportional to 64,492.74, 96,734.52 and 20,115.18 is: 30,171.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,492.74 : 96,734.52 = 20,115.18 : x
  2. Step 2: Convert to fraction form
    64,492.74/96,734.52 = 20,115.18/x
  3. Step 3: Cross multiply
    64,492.74x = 96,734.52 × 20,115.18
  4. Step 4: Simplify right side
    64,492.74x = 1,945,832,282.01
  5. Step 5: Solve for x
    x = 1,945,832,282.01/64,492.74
  6. Step 6: Final answer
    x = 30,171.34

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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.