Home / 67,869.21-101,819.01-20,485.14

Finding the Fourth Proportional to 67,869.21, 101,819.01 and 20,485.14

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Solution

The fourth proportional to 67,869.21, 101,819.01 and 20,485.14 is: 30,732.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,869.21 : 101,819.01 = 20,485.14 : x
  2. Step 2: Convert to fraction form
    67,869.21/101,819.01 = 20,485.14/x
  3. Step 3: Cross multiply
    67,869.21x = 101,819.01 × 20,485.14
  4. Step 4: Simplify right side
    67,869.21x = 2,085,776,674.51
  5. Step 5: Solve for x
    x = 2,085,776,674.51/67,869.21
  6. Step 6: Final answer
    x = 30,732.30

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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.