Home / 74,919.24-112,395.60-28,172.52

Finding the Fourth Proportional to 74,919.24, 112,395.60 and 28,172.52

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Solution

The fourth proportional to 74,919.24, 112,395.60 and 28,172.52 is: 42,265.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,919.24 : 112,395.60 = 28,172.52 : x
  2. Step 2: Convert to fraction form
    74,919.24/112,395.60 = 28,172.52/x
  3. Step 3: Cross multiply
    74,919.24x = 112,395.60 × 28,172.52
  4. Step 4: Simplify right side
    74,919.24x = 3,166,467,288.91
  5. Step 5: Solve for x
    x = 3,166,467,288.91/74,919.24
  6. Step 6: Final answer
    x = 42,265.07

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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.