Home / 53,917.40-80,876.10-45,169.40

Finding the Fourth Proportional to 53,917.40, 80,876.10 and 45,169.40

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Solution

The fourth proportional to 53,917.40, 80,876.10 and 45,169.40 is: 67,754.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,917.40 : 80,876.10 = 45,169.40 : x
  2. Step 2: Convert to fraction form
    53,917.40/80,876.10 = 45,169.40/x
  3. Step 3: Cross multiply
    53,917.40x = 80,876.10 × 45,169.40
  4. Step 4: Simplify right side
    53,917.40x = 3,653,124,911.34
  5. Step 5: Solve for x
    x = 3,653,124,911.34/53,917.40
  6. Step 6: Final answer
    x = 67,754.10

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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.