Home / 77,682.48-107,219.52-54,997.89

Finding the Fourth Proportional to 77,682.48, 107,219.52 and 54,997.89

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Solution

The fourth proportional to 77,682.48, 107,219.52 and 54,997.89 is: 75,909.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,682.48 : 107,219.52 = 54,997.89 : x
  2. Step 2: Convert to fraction form
    77,682.48/107,219.52 = 54,997.89/x
  3. Step 3: Cross multiply
    77,682.48x = 107,219.52 × 54,997.89
  4. Step 4: Simplify right side
    77,682.48x = 5,896,847,366.81
  5. Step 5: Solve for x
    x = 5,896,847,366.81/77,682.48
  6. Step 6: Final answer
    x = 75,909.62

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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.