Home / 86,845.12-119,808.22-51,018.98

Finding the Fourth Proportional to 86,845.12, 119,808.22 and 51,018.98

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Solution

The fourth proportional to 86,845.12, 119,808.22 and 51,018.98 is: 70,383.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,845.12 : 119,808.22 = 51,018.98 : x
  2. Step 2: Convert to fraction form
    86,845.12/119,808.22 = 51,018.98/x
  3. Step 3: Cross multiply
    86,845.12x = 119,808.22 × 51,018.98
  4. Step 4: Simplify right side
    86,845.12x = 6,112,493,180.02
  5. Step 5: Solve for x
    x = 6,112,493,180.02/86,845.12
  6. Step 6: Final answer
    x = 70,383.84

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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.