Home / 74,961.32-112,458.18-28,214.06

Finding the Fourth Proportional to 74,961.32, 112,458.18 and 28,214.06

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Solution

The fourth proportional to 74,961.32, 112,458.18 and 28,214.06 is: 42,327.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,961.32 : 112,458.18 = 28,214.06 : x
  2. Step 2: Convert to fraction form
    74,961.32/112,458.18 = 28,214.06/x
  3. Step 3: Cross multiply
    74,961.32x = 112,458.18 × 28,214.06
  4. Step 4: Simplify right side
    74,961.32x = 3,172,901,838.01
  5. Step 5: Solve for x
    x = 3,172,901,838.01/74,961.32
  6. Step 6: Final answer
    x = 42,327.19

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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.