Home / 42,704.03-64,056.14-13,121.66

Finding the Fourth Proportional to 42,704.03, 64,056.14 and 13,121.66

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Solution

The fourth proportional to 42,704.03, 64,056.14 and 13,121.66 is: 19,682.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,704.03 : 64,056.14 = 13,121.66 : x
  2. Step 2: Convert to fraction form
    42,704.03/64,056.14 = 13,121.66/x
  3. Step 3: Cross multiply
    42,704.03x = 64,056.14 × 13,121.66
  4. Step 4: Simplify right side
    42,704.03x = 840,522,504.10
  5. Step 5: Solve for x
    x = 840,522,504.10/42,704.03
  6. Step 6: Final answer
    x = 19,682.51

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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.