Home / 86,826.06-130,239.21-30,635.67

Finding the Fourth Proportional to 86,826.06, 130,239.21 and 30,635.67

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Solution

The fourth proportional to 86,826.06, 130,239.21 and 30,635.67 is: 45,953.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,826.06 : 130,239.21 = 30,635.67 : x
  2. Step 2: Convert to fraction form
    86,826.06/130,239.21 = 30,635.67/x
  3. Step 3: Cross multiply
    86,826.06x = 130,239.21 × 30,635.67
  4. Step 4: Simplify right side
    86,826.06x = 3,989,965,458.62
  5. Step 5: Solve for x
    x = 3,989,965,458.62/86,826.06
  6. Step 6: Final answer
    x = 45,953.55

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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.