Home / 89,891.12-124,048.78-49,605.68

Finding the Fourth Proportional to 89,891.12, 124,048.78 and 49,605.68

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Solution

The fourth proportional to 89,891.12, 124,048.78 and 49,605.68 is: 68,455.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,891.12 : 124,048.78 = 49,605.68 : x
  2. Step 2: Convert to fraction form
    89,891.12/124,048.78 = 49,605.68/x
  3. Step 3: Cross multiply
    89,891.12x = 124,048.78 × 49,605.68
  4. Step 4: Simplify right side
    89,891.12x = 6,153,524,085.07
  5. Step 5: Solve for x
    x = 6,153,524,085.07/89,891.12
  6. Step 6: Final answer
    x = 68,455.31

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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.