Home / 51,450.53-70,979.21-30,220.23

Finding the Fourth Proportional to 51,450.53, 70,979.21 and 30,220.23

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Solution

The fourth proportional to 51,450.53, 70,979.21 and 30,220.23 is: 41,690.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,450.53 : 70,979.21 = 30,220.23 : x
  2. Step 2: Convert to fraction form
    51,450.53/70,979.21 = 30,220.23/x
  3. Step 3: Cross multiply
    51,450.53x = 70,979.21 × 30,220.23
  4. Step 4: Simplify right side
    51,450.53x = 2,145,007,900.32
  5. Step 5: Solve for x
    x = 2,145,007,900.32/51,450.53
  6. Step 6: Final answer
    x = 41,690.68

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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.