Home / 51,903.99-71,628.30-30,685.23

Finding the Fourth Proportional to 51,903.99, 71,628.30 and 30,685.23

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Solution

The fourth proportional to 51,903.99, 71,628.30 and 30,685.23 is: 42,346.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,903.99 : 71,628.30 = 30,685.23 : x
  2. Step 2: Convert to fraction form
    51,903.99/71,628.30 = 30,685.23/x
  3. Step 3: Cross multiply
    51,903.99x = 71,628.30 × 30,685.23
  4. Step 4: Simplify right side
    51,903.99x = 2,197,930,860.01
  5. Step 5: Solve for x
    x = 2,197,930,860.01/51,903.99
  6. Step 6: Final answer
    x = 42,346.09

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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.