Home / 42,768.48-64,155.06-19,396.68

Finding the Fourth Proportional to 42,768.48, 64,155.06 and 19,396.68

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Solution

The fourth proportional to 42,768.48, 64,155.06 and 19,396.68 is: 29,096.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,768.48 : 64,155.06 = 19,396.68 : x
  2. Step 2: Convert to fraction form
    42,768.48/64,155.06 = 19,396.68/x
  3. Step 3: Cross multiply
    42,768.48x = 64,155.06 × 19,396.68
  4. Step 4: Simplify right side
    42,768.48x = 1,244,395,169.20
  5. Step 5: Solve for x
    x = 1,244,395,169.20/42,768.48
  6. Step 6: Final answer
    x = 29,096.08

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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.