Home / 86,984.33-120,036.33-51,176.65

Finding the Fourth Proportional to 86,984.33, 120,036.33 and 51,176.65

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Solution

The fourth proportional to 86,984.33, 120,036.33 and 51,176.65 is: 70,622.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,984.33 : 120,036.33 = 51,176.65 : x
  2. Step 2: Convert to fraction form
    86,984.33/120,036.33 = 51,176.65/x
  3. Step 3: Cross multiply
    86,984.33x = 120,036.33 × 51,176.65
  4. Step 4: Simplify right side
    86,984.33x = 6,143,057,247.69
  5. Step 5: Solve for x
    x = 6,143,057,247.69/86,984.33
  6. Step 6: Final answer
    x = 70,622.57

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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.