Home / 86,993.07-120,044.76-51,176.16

Finding the Fourth Proportional to 86,993.07, 120,044.76 and 51,176.16

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Solution

The fourth proportional to 86,993.07, 120,044.76 and 51,176.16 is: 70,619.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,993.07 : 120,044.76 = 51,176.16 : x
  2. Step 2: Convert to fraction form
    86,993.07/120,044.76 = 51,176.16/x
  3. Step 3: Cross multiply
    86,993.07x = 120,044.76 × 51,176.16
  4. Step 4: Simplify right side
    86,993.07x = 6,143,429,844.92
  5. Step 5: Solve for x
    x = 6,143,429,844.92/86,993.07
  6. Step 6: Final answer
    x = 70,619.76

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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.