Home / 64,663.20-96,994.62-20,290.14

Finding the Fourth Proportional to 64,663.20, 96,994.62 and 20,290.14

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Solution

The fourth proportional to 64,663.20, 96,994.62 and 20,290.14 is: 30,435.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,663.20 : 96,994.62 = 20,290.14 : x
  2. Step 2: Convert to fraction form
    64,663.20/96,994.62 = 20,290.14/x
  3. Step 3: Cross multiply
    64,663.20x = 96,994.62 × 20,290.14
  4. Step 4: Simplify right side
    64,663.20x = 1,968,034,419.05
  5. Step 5: Solve for x
    x = 1,968,034,419.05/64,663.20
  6. Step 6: Final answer
    x = 30,435.15

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1.5x scale

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.