Home / 74,690.64-112,113.40-33,166.80

Finding the Fourth Proportional to 74,690.64, 112,113.40 and 33,166.80

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Solution

The fourth proportional to 74,690.64, 112,113.40 and 33,166.80 is: 49,784.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,690.64 : 112,113.40 = 33,166.80 : x
  2. Step 2: Convert to fraction form
    74,690.64/112,113.40 = 33,166.80/x
  3. Step 3: Cross multiply
    74,690.64x = 112,113.40 × 33,166.80
  4. Step 4: Simplify right side
    74,690.64x = 3,718,442,715.12
  5. Step 5: Solve for x
    x = 3,718,442,715.12/74,690.64
  6. Step 6: Final answer
    x = 49,784.59

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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.