Home / 79,696.06-109,954.30-51,420.58

Finding the Fourth Proportional to 79,696.06, 109,954.30 and 51,420.58

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Solution

The fourth proportional to 79,696.06, 109,954.30 and 51,420.58 is: 70,943.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,696.06 : 109,954.30 = 51,420.58 : x
  2. Step 2: Convert to fraction form
    79,696.06/109,954.30 = 51,420.58/x
  3. Step 3: Cross multiply
    79,696.06x = 109,954.30 × 51,420.58
  4. Step 4: Simplify right side
    79,696.06x = 5,653,913,879.49
  5. Step 5: Solve for x
    x = 5,653,913,879.49/79,696.06
  6. Step 6: Final answer
    x = 70,943.46

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1.5x scale

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.