Home / 86,850.72-119,858.40-49,137.12

Finding the Fourth Proportional to 86,850.72, 119,858.40 and 49,137.12

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Solution

The fourth proportional to 86,850.72, 119,858.40 and 49,137.12 is: 67,811.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,850.72 : 119,858.40 = 49,137.12 : x
  2. Step 2: Convert to fraction form
    86,850.72/119,858.40 = 49,137.12/x
  3. Step 3: Cross multiply
    86,850.72x = 119,858.40 × 49,137.12
  4. Step 4: Simplify right side
    86,850.72x = 5,889,496,583.81
  5. Step 5: Solve for x
    x = 5,889,496,583.81/86,850.72
  6. Step 6: Final answer
    x = 67,811.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.