Home / 112,577.69-155,356.03-61,589.90

Finding the Fourth Proportional to 112,577.69, 155,356.03 and 61,589.90

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Solution

The fourth proportional to 112,577.69, 155,356.03 and 61,589.90 is: 84,993.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,577.69 : 155,356.03 = 61,589.90 : x
  2. Step 2: Convert to fraction form
    112,577.69/155,356.03 = 61,589.90/x
  3. Step 3: Cross multiply
    112,577.69x = 155,356.03 × 61,589.90
  4. Step 4: Simplify right side
    112,577.69x = 9,568,362,352.10
  5. Step 5: Solve for x
    x = 9,568,362,352.10/112,577.69
  6. Step 6: Final answer
    x = 84,993.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.