Home / 42,869.14-64,305.68-20,701.16

Finding the Fourth Proportional to 42,869.14, 64,305.68 and 20,701.16

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Solution

The fourth proportional to 42,869.14, 64,305.68 and 20,701.16 is: 31,052.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,869.14 : 64,305.68 = 20,701.16 : x
  2. Step 2: Convert to fraction form
    42,869.14/64,305.68 = 20,701.16/x
  3. Step 3: Cross multiply
    42,869.14x = 64,305.68 × 20,701.16
  4. Step 4: Simplify right side
    42,869.14x = 1,331,202,170.59
  5. Step 5: Solve for x
    x = 1,331,202,170.59/42,869.14
  6. Step 6: Final answer
    x = 31,052.69

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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.