Home / 55,669.48-76,826.10-30,519.88

Finding the Fourth Proportional to 55,669.48, 76,826.10 and 30,519.88

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Solution

The fourth proportional to 55,669.48, 76,826.10 and 30,519.88 is: 42,118.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,669.48 : 76,826.10 = 30,519.88 : x
  2. Step 2: Convert to fraction form
    55,669.48/76,826.10 = 30,519.88/x
  3. Step 3: Cross multiply
    55,669.48x = 76,826.10 × 30,519.88
  4. Step 4: Simplify right side
    55,669.48x = 2,344,723,352.87
  5. Step 5: Solve for x
    x = 2,344,723,352.87/55,669.48
  6. Step 6: Final answer
    x = 42,118.65

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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.