Home / 45,917.04-68,870.07-12,640.47

Finding the Fourth Proportional to 45,917.04, 68,870.07 and 12,640.47

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Solution

The fourth proportional to 45,917.04, 68,870.07 and 12,640.47 is: 18,959.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,917.04 : 68,870.07 = 12,640.47 : x
  2. Step 2: Convert to fraction form
    45,917.04/68,870.07 = 12,640.47/x
  3. Step 3: Cross multiply
    45,917.04x = 68,870.07 × 12,640.47
  4. Step 4: Simplify right side
    45,917.04x = 870,550,053.73
  5. Step 5: Solve for x
    x = 870,550,053.73/45,917.04
  6. Step 6: Final answer
    x = 18,959.19

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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.