Home / 74,768.45-112,119.86-27,988.52

Finding the Fourth Proportional to 74,768.45, 112,119.86 and 27,988.52

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Solution

The fourth proportional to 74,768.45, 112,119.86 and 27,988.52 is: 41,970.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,768.45 : 112,119.86 = 27,988.52 : x
  2. Step 2: Convert to fraction form
    74,768.45/112,119.86 = 27,988.52/x
  3. Step 3: Cross multiply
    74,768.45x = 112,119.86 × 27,988.52
  4. Step 4: Simplify right side
    74,768.45x = 3,138,068,944.01
  5. Step 5: Solve for x
    x = 3,138,068,944.01/74,768.45
  6. Step 6: Final answer
    x = 41,970.50

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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.