Home / 78,181.36-107,889.49-43,725.73

Finding the Fourth Proportional to 78,181.36, 107,889.49 and 43,725.73

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Solution

The fourth proportional to 78,181.36, 107,889.49 and 43,725.73 is: 60,341.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,181.36 : 107,889.49 = 43,725.73 : x
  2. Step 2: Convert to fraction form
    78,181.36/107,889.49 = 43,725.73/x
  3. Step 3: Cross multiply
    78,181.36x = 107,889.49 × 43,725.73
  4. Step 4: Simplify right side
    78,181.36x = 4,717,547,237.01
  5. Step 5: Solve for x
    x = 4,717,547,237.01/78,181.36
  6. Step 6: Final answer
    x = 60,341.07

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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.