Home / 77,778.74-107,327.77-43,320.85

Finding the Fourth Proportional to 77,778.74, 107,327.77 and 43,320.85

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Solution

The fourth proportional to 77,778.74, 107,327.77 and 43,320.85 is: 59,778.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,778.74 : 107,327.77 = 43,320.85 : x
  2. Step 2: Convert to fraction form
    77,778.74/107,327.77 = 43,320.85/x
  3. Step 3: Cross multiply
    77,778.74x = 107,327.77 × 43,320.85
  4. Step 4: Simplify right side
    77,778.74x = 4,649,529,848.38
  5. Step 5: Solve for x
    x = 4,649,529,848.38/77,778.74
  6. Step 6: Final answer
    x = 59,778.93

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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.