Home / 74,145.03-111,228.39-21,547.68

Finding the Fourth Proportional to 74,145.03, 111,228.39 and 21,547.68

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Solution

The fourth proportional to 74,145.03, 111,228.39 and 21,547.68 is: 32,324.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,145.03 : 111,228.39 = 21,547.68 : x
  2. Step 2: Convert to fraction form
    74,145.03/111,228.39 = 21,547.68/x
  3. Step 3: Cross multiply
    74,145.03x = 111,228.39 × 21,547.68
  4. Step 4: Simplify right side
    74,145.03x = 2,396,713,754.64
  5. Step 5: Solve for x
    x = 2,396,713,754.64/74,145.03
  6. Step 6: Final answer
    x = 32,324.67

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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.