Home / 76,018.79-104,896.77-42,022.64

Finding the Fourth Proportional to 76,018.79, 104,896.77 and 42,022.64

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Solution

The fourth proportional to 76,018.79, 104,896.77 and 42,022.64 is: 57,986.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,018.79 : 104,896.77 = 42,022.64 : x
  2. Step 2: Convert to fraction form
    76,018.79/104,896.77 = 42,022.64/x
  3. Step 3: Cross multiply
    76,018.79x = 104,896.77 × 42,022.64
  4. Step 4: Simplify right side
    76,018.79x = 4,408,038,678.39
  5. Step 5: Solve for x
    x = 4,408,038,678.39/76,018.79
  6. Step 6: Final answer
    x = 57,986.18

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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.