Home / 56,778.32-77,786.58-54,650.09

Finding the Fourth Proportional to 56,778.32, 77,786.58 and 54,650.09

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Solution

The fourth proportional to 56,778.32, 77,786.58 and 54,650.09 is: 74,870.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,778.32 : 77,786.58 = 54,650.09 : x
  2. Step 2: Convert to fraction form
    56,778.32/77,786.58 = 54,650.09/x
  3. Step 3: Cross multiply
    56,778.32x = 77,786.58 × 54,650.09
  4. Step 4: Simplify right side
    56,778.32x = 4,251,043,689.79
  5. Step 5: Solve for x
    x = 4,251,043,689.79/56,778.32
  6. Step 6: Final answer
    x = 74,870.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.