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Finding the Fourth Proportional to 66,756.47, 100,134.44 and 27,313.57

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Solution

The fourth proportional to 66,756.47, 100,134.44 and 27,313.57 is: 40,970.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,756.47 : 100,134.44 = 27,313.57 : x
  2. Step 2: Convert to fraction form
    66,756.47/100,134.44 = 27,313.57/x
  3. Step 3: Cross multiply
    66,756.47x = 100,134.44 × 27,313.57
  4. Step 4: Simplify right side
    66,756.47x = 2,735,028,717.76
  5. Step 5: Solve for x
    x = 2,735,028,717.76/66,756.47
  6. Step 6: Final answer
    x = 40,970.24

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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.