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Finding the Fourth Proportional to 69,015.42, 103,547.43 and 33,979.68

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Solution

The fourth proportional to 69,015.42, 103,547.43 and 33,979.68 is: 50,981.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,015.42 : 103,547.43 = 33,979.68 : x
  2. Step 2: Convert to fraction form
    69,015.42/103,547.43 = 33,979.68/x
  3. Step 3: Cross multiply
    69,015.42x = 103,547.43 × 33,979.68
  4. Step 4: Simplify right side
    69,015.42x = 3,518,508,536.22
  5. Step 5: Solve for x
    x = 3,518,508,536.22/69,015.42
  6. Step 6: Final answer
    x = 50,981.48

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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.