Home / 43,121.96-64,682.94-19,678.76

Finding the Fourth Proportional to 43,121.96, 64,682.94 and 19,678.76

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Solution

The fourth proportional to 43,121.96, 64,682.94 and 19,678.76 is: 29,518.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,121.96 : 64,682.94 = 19,678.76 : x
  2. Step 2: Convert to fraction form
    43,121.96/64,682.94 = 19,678.76/x
  3. Step 3: Cross multiply
    43,121.96x = 64,682.94 × 19,678.76
  4. Step 4: Simplify right side
    43,121.96x = 1,272,880,052.35
  5. Step 5: Solve for x
    x = 1,272,880,052.35/43,121.96
  6. Step 6: Final answer
    x = 29,518.14

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1.5x scale

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.