Home / 74,172.28-111,269.58-21,574.84

Finding the Fourth Proportional to 74,172.28, 111,269.58 and 21,574.84

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Solution

The fourth proportional to 74,172.28, 111,269.58 and 21,574.84 is: 32,365.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,172.28 : 111,269.58 = 21,574.84 : x
  2. Step 2: Convert to fraction form
    74,172.28/111,269.58 = 21,574.84/x
  3. Step 3: Cross multiply
    74,172.28x = 111,269.58 × 21,574.84
  4. Step 4: Simplify right side
    74,172.28x = 2,400,623,385.37
  5. Step 5: Solve for x
    x = 2,400,623,385.37/74,172.28
  6. Step 6: Final answer
    x = 32,365.51

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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.