Home / 86,300.46-129,481.74-30,148.83

Finding the Fourth Proportional to 86,300.46, 129,481.74 and 30,148.83

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Solution

The fourth proportional to 86,300.46, 129,481.74 and 30,148.83 is: 45,234.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,300.46 : 129,481.74 = 30,148.83 : x
  2. Step 2: Convert to fraction form
    86,300.46/129,481.74 = 30,148.83/x
  3. Step 3: Cross multiply
    86,300.46x = 129,481.74 × 30,148.83
  4. Step 4: Simplify right side
    86,300.46x = 3,903,722,967.36
  5. Step 5: Solve for x
    x = 3,903,722,967.36/86,300.46
  6. Step 6: Final answer
    x = 45,234.09

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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.