Home / 86,516.12-119,403.70-50,720.20

Finding the Fourth Proportional to 86,516.12, 119,403.70 and 50,720.20

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Solution

The fourth proportional to 86,516.12, 119,403.70 and 50,720.20 is: 70,000.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,516.12 : 119,403.70 = 50,720.20 : x
  2. Step 2: Convert to fraction form
    86,516.12/119,403.70 = 50,720.20/x
  3. Step 3: Cross multiply
    86,516.12x = 119,403.70 × 50,720.20
  4. Step 4: Simplify right side
    86,516.12x = 6,056,179,544.74
  5. Step 5: Solve for x
    x = 6,056,179,544.74/86,516.12
  6. Step 6: Final answer
    x = 70,000.59

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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.