Home / 74,071.75-111,118.55-21,474.40

Finding the Fourth Proportional to 74,071.75, 111,118.55 and 21,474.40

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Solution

The fourth proportional to 74,071.75, 111,118.55 and 21,474.40 is: 32,214.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,071.75 : 111,118.55 = 21,474.40 : x
  2. Step 2: Convert to fraction form
    74,071.75/111,118.55 = 21,474.40/x
  3. Step 3: Cross multiply
    74,071.75x = 111,118.55 × 21,474.40
  4. Step 4: Simplify right side
    74,071.75x = 2,386,203,527.16
  5. Step 5: Solve for x
    x = 2,386,203,527.16/74,071.75
  6. Step 6: Final answer
    x = 32,214.76

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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.