Home / 78,996.36-109,012.64-43,185.66

Finding the Fourth Proportional to 78,996.36, 109,012.64 and 43,185.66

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Solution

The fourth proportional to 78,996.36, 109,012.64 and 43,185.66 is: 59,594.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,996.36 : 109,012.64 = 43,185.66 : x
  2. Step 2: Convert to fraction form
    78,996.36/109,012.64 = 43,185.66/x
  3. Step 3: Cross multiply
    78,996.36x = 109,012.64 × 43,185.66
  4. Step 4: Simplify right side
    78,996.36x = 4,707,782,182.02
  5. Step 5: Solve for x
    x = 4,707,782,182.02/78,996.36
  6. Step 6: Final answer
    x = 59,594.92

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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.