Home / 92,005.10-138,007.65-28,825.75

Finding the Fourth Proportional to 92,005.10, 138,007.65 and 28,825.75

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Solution

The fourth proportional to 92,005.10, 138,007.65 and 28,825.75 is: 43,238.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,005.10 : 138,007.65 = 28,825.75 : x
  2. Step 2: Convert to fraction form
    92,005.10/138,007.65 = 28,825.75/x
  3. Step 3: Cross multiply
    92,005.10x = 138,007.65 × 28,825.75
  4. Step 4: Simplify right side
    92,005.10x = 3,978,174,016.99
  5. Step 5: Solve for x
    x = 3,978,174,016.99/92,005.10
  6. Step 6: Final answer
    x = 43,238.63

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1.5x scale

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.