Home / 74,280.19-111,409.33-21,675.55

Finding the Fourth Proportional to 74,280.19, 111,409.33 and 21,675.55

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Solution

The fourth proportional to 74,280.19, 111,409.33 and 21,675.55 is: 32,510.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,280.19 : 111,409.33 = 21,675.55 : x
  2. Step 2: Convert to fraction form
    74,280.19/111,409.33 = 21,675.55/x
  3. Step 3: Cross multiply
    74,280.19x = 111,409.33 × 21,675.55
  4. Step 4: Simplify right side
    74,280.19x = 2,414,858,394.50
  5. Step 5: Solve for x
    x = 2,414,858,394.50/74,280.19
  6. Step 6: Final answer
    x = 32,510.13

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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.