Home / 77,174.10-115,682.21-52,216.79

Finding the Fourth Proportional to 77,174.10, 115,682.21 and 52,216.79

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Solution

The fourth proportional to 77,174.10, 115,682.21 and 52,216.79 is: 78,271.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,174.10 : 115,682.21 = 52,216.79 : x
  2. Step 2: Convert to fraction form
    77,174.10/115,682.21 = 52,216.79/x
  3. Step 3: Cross multiply
    77,174.10x = 115,682.21 × 52,216.79
  4. Step 4: Simplify right side
    77,174.10x = 6,040,552,826.81
  5. Step 5: Solve for x
    x = 6,040,552,826.81/77,174.10
  6. Step 6: Final answer
    x = 78,271.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.