Home / 42,796.25-64,208.19-20,611.26

Finding the Fourth Proportional to 42,796.25, 64,208.19 and 20,611.26

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Solution

The fourth proportional to 42,796.25, 64,208.19 and 20,611.26 is: 30,923.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,796.25 : 64,208.19 = 20,611.26 : x
  2. Step 2: Convert to fraction form
    42,796.25/64,208.19 = 20,611.26/x
  3. Step 3: Cross multiply
    42,796.25x = 64,208.19 × 20,611.26
  4. Step 4: Simplify right side
    42,796.25x = 1,323,411,775.51
  5. Step 5: Solve for x
    x = 1,323,411,775.51/42,796.25
  6. Step 6: Final answer
    x = 30,923.55

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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.