Home / 75,983.10-104,856.40-41,990.64

Finding the Fourth Proportional to 75,983.10, 104,856.40 and 41,990.64

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Solution

The fourth proportional to 75,983.10, 104,856.40 and 41,990.64 is: 57,946.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,983.10 : 104,856.40 = 41,990.64 : x
  2. Step 2: Convert to fraction form
    75,983.10/104,856.40 = 41,990.64/x
  3. Step 3: Cross multiply
    75,983.10x = 104,856.40 × 41,990.64
  4. Step 4: Simplify right side
    75,983.10x = 4,402,987,344.10
  5. Step 5: Solve for x
    x = 4,402,987,344.10/75,983.10
  6. Step 6: Final answer
    x = 57,946.93

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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.