Home / 74,765.19-112,128.68-22,162.40

Finding the Fourth Proportional to 74,765.19, 112,128.68 and 22,162.40

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Solution

The fourth proportional to 74,765.19, 112,128.68 and 22,162.40 is: 33,237.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,765.19 : 112,128.68 = 22,162.40 : x
  2. Step 2: Convert to fraction form
    74,765.19/112,128.68 = 22,162.40/x
  3. Step 3: Cross multiply
    74,765.19x = 112,128.68 × 22,162.40
  4. Step 4: Simplify right side
    74,765.19x = 2,485,039,986.18
  5. Step 5: Solve for x
    x = 2,485,039,986.18/74,765.19
  6. Step 6: Final answer
    x = 33,237.93

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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.