Home / 74,345.76-111,629.35-30,059.01

Finding the Fourth Proportional to 74,345.76, 111,629.35 and 30,059.01

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Solution

The fourth proportional to 74,345.76, 111,629.35 and 30,059.01 is: 45,133.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,345.76 : 111,629.35 = 30,059.01 : x
  2. Step 2: Convert to fraction form
    74,345.76/111,629.35 = 30,059.01/x
  3. Step 3: Cross multiply
    74,345.76x = 111,629.35 × 30,059.01
  4. Step 4: Simplify right side
    74,345.76x = 3,355,467,387.02
  5. Step 5: Solve for x
    x = 3,355,467,387.02/74,345.76
  6. Step 6: Final answer
    x = 45,133.27

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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.