Home / 86,299.08-129,447.54-47,105.88

Finding the Fourth Proportional to 86,299.08, 129,447.54 and 47,105.88

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Solution

The fourth proportional to 86,299.08, 129,447.54 and 47,105.88 is: 70,658.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,299.08 : 129,447.54 = 47,105.88 : x
  2. Step 2: Convert to fraction form
    86,299.08/129,447.54 = 47,105.88/x
  3. Step 3: Cross multiply
    86,299.08x = 129,447.54 × 47,105.88
  4. Step 4: Simplify right side
    86,299.08x = 6,097,740,285.54
  5. Step 5: Solve for x
    x = 6,097,740,285.54/86,299.08
  6. Step 6: Final answer
    x = 70,658.23

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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.