Home / 120,021.75-180,041.91-35,775.47

Finding the Fourth Proportional to 120,021.75, 180,041.91 and 35,775.47

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Solution

The fourth proportional to 120,021.75, 180,041.91 and 35,775.47 is: 53,665.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,021.75 : 180,041.91 = 35,775.47 : x
  2. Step 2: Convert to fraction form
    120,021.75/180,041.91 = 35,775.47/x
  3. Step 3: Cross multiply
    120,021.75x = 180,041.91 × 35,775.47
  4. Step 4: Simplify right side
    120,021.75x = 6,441,083,049.74
  5. Step 5: Solve for x
    x = 6,441,083,049.74/120,021.75
  6. Step 6: Final answer
    x = 53,665.97

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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.