Home / 42,710.35-64,079.22-20,525.33

Finding the Fourth Proportional to 42,710.35, 64,079.22 and 20,525.33

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Solution

The fourth proportional to 42,710.35, 64,079.22 and 20,525.33 is: 30,794.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,710.35 : 64,079.22 = 20,525.33 : x
  2. Step 2: Convert to fraction form
    42,710.35/64,079.22 = 20,525.33/x
  3. Step 3: Cross multiply
    42,710.35x = 64,079.22 × 20,525.33
  4. Step 4: Simplify right side
    42,710.35x = 1,315,247,136.64
  5. Step 5: Solve for x
    x = 1,315,247,136.64/42,710.35
  6. Step 6: Final answer
    x = 30,794.58

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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.