Home / 74,922.98-112,400.90-28,175.84

Finding the Fourth Proportional to 74,922.98, 112,400.90 and 28,175.84

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Solution

The fourth proportional to 74,922.98, 112,400.90 and 28,175.84 is: 42,269.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,922.98 : 112,400.90 = 28,175.84 : x
  2. Step 2: Convert to fraction form
    74,922.98/112,400.90 = 28,175.84/x
  3. Step 3: Cross multiply
    74,922.98x = 112,400.90 × 28,175.84
  4. Step 4: Simplify right side
    74,922.98x = 3,166,989,774.26
  5. Step 5: Solve for x
    x = 3,166,989,774.26/74,922.98
  6. Step 6: Final answer
    x = 42,269.94

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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.