Home / 74,868.20-112,242.68-43,242.28

Finding the Fourth Proportional to 74,868.20, 112,242.68 and 43,242.28

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Solution

The fourth proportional to 74,868.20, 112,242.68 and 43,242.28 is: 64,828.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,868.20 : 112,242.68 = 43,242.28 : x
  2. Step 2: Convert to fraction form
    74,868.20/112,242.68 = 43,242.28/x
  3. Step 3: Cross multiply
    74,868.20x = 112,242.68 × 43,242.28
  4. Step 4: Simplify right side
    74,868.20x = 4,853,629,396.51
  5. Step 5: Solve for x
    x = 4,853,629,396.51/74,868.20
  6. Step 6: Final answer
    x = 64,828.98

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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.