Home / 43,385.40-65,065.33-19,679.23

Finding the Fourth Proportional to 43,385.40, 65,065.33 and 19,679.23

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Solution

The fourth proportional to 43,385.40, 65,065.33 and 19,679.23 is: 29,513.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,385.40 : 65,065.33 = 19,679.23 : x
  2. Step 2: Convert to fraction form
    43,385.40/65,065.33 = 19,679.23/x
  3. Step 3: Cross multiply
    43,385.40x = 65,065.33 × 19,679.23
  4. Step 4: Simplify right side
    43,385.40x = 1,280,435,594.10
  5. Step 5: Solve for x
    x = 1,280,435,594.10/43,385.40
  6. Step 6: Final answer
    x = 29,513.05

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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.