Home / 86,038.58-118,720.41-48,305.54

Finding the Fourth Proportional to 86,038.58, 118,720.41 and 48,305.54

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Solution

The fourth proportional to 86,038.58, 118,720.41 and 48,305.54 is: 66,654.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,038.58 : 118,720.41 = 48,305.54 : x
  2. Step 2: Convert to fraction form
    86,038.58/118,720.41 = 48,305.54/x
  3. Step 3: Cross multiply
    86,038.58x = 118,720.41 × 48,305.54
  4. Step 4: Simplify right side
    86,038.58x = 5,734,853,514.07
  5. Step 5: Solve for x
    x = 5,734,853,514.07/86,038.58
  6. Step 6: Final answer
    x = 66,654.44

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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.