Home / 51,338.11-77,007.11-19,323.16

Finding the Fourth Proportional to 51,338.11, 77,007.11 and 19,323.16

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Solution

The fourth proportional to 51,338.11, 77,007.11 and 19,323.16 is: 28,984.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,338.11 : 77,007.11 = 19,323.16 : x
  2. Step 2: Convert to fraction form
    51,338.11/77,007.11 = 19,323.16/x
  3. Step 3: Cross multiply
    51,338.11x = 77,007.11 × 19,323.16
  4. Step 4: Simplify right side
    51,338.11x = 1,488,020,322.63
  5. Step 5: Solve for x
    x = 1,488,020,322.63/51,338.11
  6. Step 6: Final answer
    x = 28,984.71

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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.