Home / 51,387.75-77,114.03-20,222.19

Finding the Fourth Proportional to 51,387.75, 77,114.03 and 20,222.19

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Solution

The fourth proportional to 51,387.75, 77,114.03 and 20,222.19 is: 30,346.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,387.75 : 77,114.03 = 20,222.19 : x
  2. Step 2: Convert to fraction form
    51,387.75/77,114.03 = 20,222.19/x
  3. Step 3: Cross multiply
    51,387.75x = 77,114.03 × 20,222.19
  4. Step 4: Simplify right side
    51,387.75x = 1,559,414,465.21
  5. Step 5: Solve for x
    x = 1,559,414,465.21/51,387.75
  6. Step 6: Final answer
    x = 30,346.04

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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.