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Finding the Fourth Proportional to 55,676.72, 76,730.84 and 39,544.76

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Solution

The fourth proportional to 55,676.72, 76,730.84 and 39,544.76 is: 54,498.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,676.72 : 76,730.84 = 39,544.76 : x
  2. Step 2: Convert to fraction form
    55,676.72/76,730.84 = 39,544.76/x
  3. Step 3: Cross multiply
    55,676.72x = 76,730.84 × 39,544.76
  4. Step 4: Simplify right side
    55,676.72x = 3,034,302,585.62
  5. Step 5: Solve for x
    x = 3,034,302,585.62/55,676.72
  6. Step 6: Final answer
    x = 54,498.59

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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.