Home / 74,135.16-111,175.74-21,530.52

Finding the Fourth Proportional to 74,135.16, 111,175.74 and 21,530.52

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Solution

The fourth proportional to 74,135.16, 111,175.74 and 21,530.52 is: 32,287.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,135.16 : 111,175.74 = 21,530.52 : x
  2. Step 2: Convert to fraction form
    74,135.16/111,175.74 = 21,530.52/x
  3. Step 3: Cross multiply
    74,135.16x = 111,175.74 × 21,530.52
  4. Step 4: Simplify right side
    74,135.16x = 2,393,671,493.58
  5. Step 5: Solve for x
    x = 2,393,671,493.58/74,135.16
  6. Step 6: Final answer
    x = 32,287.94

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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.