Home / 43,423.80-65,135.70-25,636.20

Finding the Fourth Proportional to 43,423.80, 65,135.70 and 25,636.20

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Solution

The fourth proportional to 43,423.80, 65,135.70 and 25,636.20 is: 38,454.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,423.80 : 65,135.70 = 25,636.20 : x
  2. Step 2: Convert to fraction form
    43,423.80/65,135.70 = 25,636.20/x
  3. Step 3: Cross multiply
    43,423.80x = 65,135.70 × 25,636.20
  4. Step 4: Simplify right side
    43,423.80x = 1,669,831,832.34
  5. Step 5: Solve for x
    x = 1,669,831,832.34/43,423.80
  6. Step 6: Final answer
    x = 38,454.30

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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.