Home / 53,841.60-80,810.40-31,627.20

Finding the Fourth Proportional to 53,841.60, 80,810.40 and 31,627.20

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Solution

The fourth proportional to 53,841.60, 80,810.40 and 31,627.20 is: 47,469.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,841.60 : 80,810.40 = 31,627.20 : x
  2. Step 2: Convert to fraction form
    53,841.60/80,810.40 = 31,627.20/x
  3. Step 3: Cross multiply
    53,841.60x = 80,810.40 × 31,627.20
  4. Step 4: Simplify right side
    53,841.60x = 2,555,806,682.88
  5. Step 5: Solve for x
    x = 2,555,806,682.88/53,841.60
  6. Step 6: Final answer
    x = 47,469.00

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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.