Home / 77,650.91-107,150.87-45,393.09

Finding the Fourth Proportional to 77,650.91, 107,150.87 and 45,393.09

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Solution

The fourth proportional to 77,650.91, 107,150.87 and 45,393.09 is: 62,638.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,650.91 : 107,150.87 = 45,393.09 : x
  2. Step 2: Convert to fraction form
    77,650.91/107,150.87 = 45,393.09/x
  3. Step 3: Cross multiply
    77,650.91x = 107,150.87 × 45,393.09
  4. Step 4: Simplify right side
    77,650.91x = 4,863,909,085.49
  5. Step 5: Solve for x
    x = 4,863,909,085.49/77,650.91
  6. Step 6: Final answer
    x = 62,638.15

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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.