Home / 47,986.74-66,242.93-30,999.26

Finding the Fourth Proportional to 47,986.74, 66,242.93 and 30,999.26

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Solution

The fourth proportional to 47,986.74, 66,242.93 and 30,999.26 is: 42,792.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,986.74 : 66,242.93 = 30,999.26 : x
  2. Step 2: Convert to fraction form
    47,986.74/66,242.93 = 30,999.26/x
  3. Step 3: Cross multiply
    47,986.74x = 66,242.93 × 30,999.26
  4. Step 4: Simplify right side
    47,986.74x = 2,053,481,479.02
  5. Step 5: Solve for x
    x = 2,053,481,479.02/47,986.74
  6. Step 6: Final answer
    x = 42,792.69

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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.