Home / 85,956.56-118,589.64-56,165.84

Finding the Fourth Proportional to 85,956.56, 118,589.64 and 56,165.84

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Solution

The fourth proportional to 85,956.56, 118,589.64 and 56,165.84 is: 77,488.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,956.56 : 118,589.64 = 56,165.84 : x
  2. Step 2: Convert to fraction form
    85,956.56/118,589.64 = 56,165.84/x
  3. Step 3: Cross multiply
    85,956.56x = 118,589.64 × 56,165.84
  4. Step 4: Simplify right side
    85,956.56x = 6,660,686,745.90
  5. Step 5: Solve for x
    x = 6,660,686,745.90/85,956.56
  6. Step 6: Final answer
    x = 77,488.99

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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.