Home / 86,826.62-130,206.83-30,656.30

Finding the Fourth Proportional to 86,826.62, 130,206.83 and 30,656.30

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Solution

The fourth proportional to 86,826.62, 130,206.83 and 30,656.30 is: 45,972.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,826.62 : 130,206.83 = 30,656.30 : x
  2. Step 2: Convert to fraction form
    86,826.62/130,206.83 = 30,656.30/x
  3. Step 3: Cross multiply
    86,826.62x = 130,206.83 × 30,656.30
  4. Step 4: Simplify right side
    86,826.62x = 3,991,658,838.21
  5. Step 5: Solve for x
    x = 3,991,658,838.21/86,826.62
  6. Step 6: Final answer
    x = 45,972.75

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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.