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Finding the Fourth Proportional to 53,520, 73,841.04 and 30,856.11

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Solution

The fourth proportional to 53,520, 73,841.04 and 30,856.11 is: 42,571.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,520 : 73,841.04 = 30,856.11 : x
  2. Step 2: Convert to fraction form
    53,520/73,841.04 = 30,856.11/x
  3. Step 3: Cross multiply
    53,520x = 73,841.04 × 30,856.11
  4. Step 4: Simplify right side
    53,520x = 2,278,447,252.75
  5. Step 5: Solve for x
    x = 2,278,447,252.75/53,520
  6. Step 6: Final answer
    x = 42,571.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.