Home / 43,119.90-64,679.87-19,399.74

Finding the Fourth Proportional to 43,119.90, 64,679.87 and 19,399.74

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Solution

The fourth proportional to 43,119.90, 64,679.87 and 19,399.74 is: 29,099.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,119.90 : 64,679.87 = 19,399.74 : x
  2. Step 2: Convert to fraction form
    43,119.90/64,679.87 = 19,399.74/x
  3. Step 3: Cross multiply
    43,119.90x = 64,679.87 × 19,399.74
  4. Step 4: Simplify right side
    43,119.90x = 1,254,772,564.24
  5. Step 5: Solve for x
    x = 1,254,772,564.24/43,119.90
  6. Step 6: Final answer
    x = 29,099.62

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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.