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Finding the Fourth Proportional to 75,162.76, 112,751.60 and 27,790.28

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Solution

The fourth proportional to 75,162.76, 112,751.60 and 27,790.28 is: 41,688.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,162.76 : 112,751.60 = 27,790.28 : x
  2. Step 2: Convert to fraction form
    75,162.76/112,751.60 = 27,790.28/x
  3. Step 3: Cross multiply
    75,162.76x = 112,751.60 × 27,790.28
  4. Step 4: Simplify right side
    75,162.76x = 3,133,398,534.45
  5. Step 5: Solve for x
    x = 3,133,398,534.45/75,162.76
  6. Step 6: Final answer
    x = 41,688.18

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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.