Home / 74,148.12-111,228.21-21,557.52

Finding the Fourth Proportional to 74,148.12, 111,228.21 and 21,557.52

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Solution

The fourth proportional to 74,148.12, 111,228.21 and 21,557.52 is: 32,338.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,148.12 : 111,228.21 = 21,557.52 : x
  2. Step 2: Convert to fraction form
    74,148.12/111,228.21 = 21,557.52/x
  3. Step 3: Cross multiply
    74,148.12x = 111,228.21 × 21,557.52
  4. Step 4: Simplify right side
    74,148.12x = 2,397,804,361.64
  5. Step 5: Solve for x
    x = 2,397,804,361.64/74,148.12
  6. Step 6: Final answer
    x = 32,338.03

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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.