Home / 74,395.80-111,600.26-21,088.50

Finding the Fourth Proportional to 74,395.80, 111,600.26 and 21,088.50

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Solution

The fourth proportional to 74,395.80, 111,600.26 and 21,088.50 is: 31,634.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,395.80 : 111,600.26 = 21,088.50 : x
  2. Step 2: Convert to fraction form
    74,395.80/111,600.26 = 21,088.50/x
  3. Step 3: Cross multiply
    74,395.80x = 111,600.26 × 21,088.50
  4. Step 4: Simplify right side
    74,395.80x = 2,353,482,083.01
  5. Step 5: Solve for x
    x = 2,353,482,083.01/74,395.80
  6. Step 6: Final answer
    x = 31,634.61

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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.