Home / 45,643.91-62,969.13-28,636.61

Finding the Fourth Proportional to 45,643.91, 62,969.13 and 28,636.61

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Solution

The fourth proportional to 45,643.91, 62,969.13 and 28,636.61 is: 39,506.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,643.91 : 62,969.13 = 28,636.61 : x
  2. Step 2: Convert to fraction form
    45,643.91/62,969.13 = 28,636.61/x
  3. Step 3: Cross multiply
    45,643.91x = 62,969.13 × 28,636.61
  4. Step 4: Simplify right side
    45,643.91x = 1,803,222,103.00
  5. Step 5: Solve for x
    x = 1,803,222,103.00/45,643.91
  6. Step 6: Final answer
    x = 39,506.31

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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.