Home / 74,770.07-112,122.30-27,990.14

Finding the Fourth Proportional to 74,770.07, 112,122.30 and 27,990.14

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Solution

The fourth proportional to 74,770.07, 112,122.30 and 27,990.14 is: 41,972.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,770.07 : 112,122.30 = 27,990.14 : x
  2. Step 2: Convert to fraction form
    74,770.07/112,122.30 = 27,990.14/x
  3. Step 3: Cross multiply
    74,770.07x = 112,122.30 × 27,990.14
  4. Step 4: Simplify right side
    74,770.07x = 3,138,319,154.43
  5. Step 5: Solve for x
    x = 3,138,319,154.43/74,770.07
  6. Step 6: Final answer
    x = 41,972.93

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1.5x scale

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.