Home / 75,669.05-104,423.29-43,856.40

Finding the Fourth Proportional to 75,669.05, 104,423.29 and 43,856.40

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Solution

The fourth proportional to 75,669.05, 104,423.29 and 43,856.40 is: 60,521.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,669.05 : 104,423.29 = 43,856.40 : x
  2. Step 2: Convert to fraction form
    75,669.05/104,423.29 = 43,856.40/x
  3. Step 3: Cross multiply
    75,669.05x = 104,423.29 × 43,856.40
  4. Step 4: Simplify right side
    75,669.05x = 4,579,629,857.50
  5. Step 5: Solve for x
    x = 4,579,629,857.50/75,669.05
  6. Step 6: Final answer
    x = 60,521.83

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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.