Home / 74,678.22-112,015.08-30,303.90

Finding the Fourth Proportional to 74,678.22, 112,015.08 and 30,303.90

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Solution

The fourth proportional to 74,678.22, 112,015.08 and 30,303.90 is: 45,454.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,678.22 : 112,015.08 = 30,303.90 : x
  2. Step 2: Convert to fraction form
    74,678.22/112,015.08 = 30,303.90/x
  3. Step 3: Cross multiply
    74,678.22x = 112,015.08 × 30,303.90
  4. Step 4: Simplify right side
    74,678.22x = 3,394,493,782.81
  5. Step 5: Solve for x
    x = 3,394,493,782.81/74,678.22
  6. Step 6: Final answer
    x = 45,454.94

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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.