Home / 77,550.72-107,079.48-56,380.56

Finding the Fourth Proportional to 77,550.72, 107,079.48 and 56,380.56

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Solution

The fourth proportional to 77,550.72, 107,079.48 and 56,380.56 is: 77,848.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,550.72 : 107,079.48 = 56,380.56 : x
  2. Step 2: Convert to fraction form
    77,550.72/107,079.48 = 56,380.56/x
  3. Step 3: Cross multiply
    77,550.72x = 107,079.48 × 56,380.56
  4. Step 4: Simplify right side
    77,550.72x = 6,037,201,046.91
  5. Step 5: Solve for x
    x = 6,037,201,046.91/77,550.72
  6. Step 6: Final answer
    x = 77,848.42

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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.