Home / 86,214.65-118,976.20-47,976.65

Finding the Fourth Proportional to 86,214.65, 118,976.20 and 47,976.65

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Solution

The fourth proportional to 86,214.65, 118,976.20 and 47,976.65 is: 66,207.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,214.65 : 118,976.20 = 47,976.65 : x
  2. Step 2: Convert to fraction form
    86,214.65/118,976.20 = 47,976.65/x
  3. Step 3: Cross multiply
    86,214.65x = 118,976.20 × 47,976.65
  4. Step 4: Simplify right side
    86,214.65x = 5,708,079,683.23
  5. Step 5: Solve for x
    x = 5,708,079,683.23/86,214.65
  6. Step 6: Final answer
    x = 66,207.77

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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.