Home / 43,961.40-65,942.10-42,406.20

Finding the Fourth Proportional to 43,961.40, 65,942.10 and 42,406.20

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Solution

The fourth proportional to 43,961.40, 65,942.10 and 42,406.20 is: 63,609.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,961.40 : 65,942.10 = 42,406.20 : x
  2. Step 2: Convert to fraction form
    43,961.40/65,942.10 = 42,406.20/x
  3. Step 3: Cross multiply
    43,961.40x = 65,942.10 × 42,406.20
  4. Step 4: Simplify right side
    43,961.40x = 2,796,353,881.02
  5. Step 5: Solve for x
    x = 2,796,353,881.02/43,961.40
  6. Step 6: Final answer
    x = 63,609.30

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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.