Home / 51,979.42-77,969.14-16,919.08

Finding the Fourth Proportional to 51,979.42, 77,969.14 and 16,919.08

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Solution

The fourth proportional to 51,979.42, 77,969.14 and 16,919.08 is: 25,378.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,979.42 : 77,969.14 = 16,919.08 : x
  2. Step 2: Convert to fraction form
    51,979.42/77,969.14 = 16,919.08/x
  3. Step 3: Cross multiply
    51,979.42x = 77,969.14 × 16,919.08
  4. Step 4: Simplify right side
    51,979.42x = 1,319,166,117.19
  5. Step 5: Solve for x
    x = 1,319,166,117.19/51,979.42
  6. Step 6: Final answer
    x = 25,378.62

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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.