Home / 78,029.44-117,009.60-56,049.28

Finding the Fourth Proportional to 78,029.44, 117,009.60 and 56,049.28

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Solution

The fourth proportional to 78,029.44, 117,009.60 and 56,049.28 is: 84,049.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,029.44 : 117,009.60 = 56,049.28 : x
  2. Step 2: Convert to fraction form
    78,029.44/117,009.60 = 56,049.28/x
  3. Step 3: Cross multiply
    78,029.44x = 117,009.60 × 56,049.28
  4. Step 4: Simplify right side
    78,029.44x = 6,558,303,833.09
  5. Step 5: Solve for x
    x = 6,558,303,833.09/78,029.44
  6. Step 6: Final answer
    x = 84,049.10

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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.