Home / 86,789.36-130,015.91-49,235.84

Finding the Fourth Proportional to 86,789.36, 130,015.91 and 49,235.84

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Solution

The fourth proportional to 86,789.36, 130,015.91 and 49,235.84 is: 73,758.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,789.36 : 130,015.91 = 49,235.84 : x
  2. Step 2: Convert to fraction form
    86,789.36/130,015.91 = 49,235.84/x
  3. Step 3: Cross multiply
    86,789.36x = 130,015.91 × 49,235.84
  4. Step 4: Simplify right side
    86,789.36x = 6,401,442,542.21
  5. Step 5: Solve for x
    x = 6,401,442,542.21/86,789.36
  6. Step 6: Final answer
    x = 73,758.38

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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.