Home / 53,470.20-80,205.30-36,881.40

Finding the Fourth Proportional to 53,470.20, 80,205.30 and 36,881.40

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Solution

The fourth proportional to 53,470.20, 80,205.30 and 36,881.40 is: 55,322.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,470.20 : 80,205.30 = 36,881.40 : x
  2. Step 2: Convert to fraction form
    53,470.20/80,205.30 = 36,881.40/x
  3. Step 3: Cross multiply
    53,470.20x = 80,205.30 × 36,881.40
  4. Step 4: Simplify right side
    53,470.20x = 2,958,083,751.42
  5. Step 5: Solve for x
    x = 2,958,083,751.42/53,470.20
  6. Step 6: Final answer
    x = 55,322.10

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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.