Home / 43,105.21-64,615.88-20,610.04

Finding the Fourth Proportional to 43,105.21, 64,615.88 and 20,610.04

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Solution

The fourth proportional to 43,105.21, 64,615.88 and 20,610.04 is: 30,895.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,105.21 : 64,615.88 = 20,610.04 : x
  2. Step 2: Convert to fraction form
    43,105.21/64,615.88 = 20,610.04/x
  3. Step 3: Cross multiply
    43,105.21x = 64,615.88 × 20,610.04
  4. Step 4: Simplify right side
    43,105.21x = 1,331,736,058.74
  5. Step 5: Solve for x
    x = 1,331,736,058.74/43,105.21
  6. Step 6: Final answer
    x = 30,895.01

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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.