Home / 74,145.09-111,228.49-21,547.74

Finding the Fourth Proportional to 74,145.09, 111,228.49 and 21,547.74

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Solution

The fourth proportional to 74,145.09, 111,228.49 and 21,547.74 is: 32,324.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,145.09 : 111,228.49 = 21,547.74 : x
  2. Step 2: Convert to fraction form
    74,145.09/111,228.49 = 21,547.74/x
  3. Step 3: Cross multiply
    74,145.09x = 111,228.49 × 21,547.74
  4. Step 4: Simplify right side
    74,145.09x = 2,396,722,753.45
  5. Step 5: Solve for x
    x = 2,396,722,753.45/74,145.09
  6. Step 6: Final answer
    x = 32,324.77

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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.