Home / 51,934.06-71,674.06-30,720.16

Finding the Fourth Proportional to 51,934.06, 71,674.06 and 30,720.16

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Solution

The fourth proportional to 51,934.06, 71,674.06 and 30,720.16 is: 42,396.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,934.06 : 71,674.06 = 30,720.16 : x
  2. Step 2: Convert to fraction form
    51,934.06/71,674.06 = 30,720.16/x
  3. Step 3: Cross multiply
    51,934.06x = 71,674.06 × 30,720.16
  4. Step 4: Simplify right side
    51,934.06x = 2,201,838,591.05
  5. Step 5: Solve for x
    x = 2,201,838,591.05/51,934.06
  6. Step 6: Final answer
    x = 42,396.81

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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.