Home / 76,826.49-115,160.76-29,430.42

Finding the Fourth Proportional to 76,826.49, 115,160.76 and 29,430.42

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Solution

The fourth proportional to 76,826.49, 115,160.76 and 29,430.42 is: 44,115.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,826.49 : 115,160.76 = 29,430.42 : x
  2. Step 2: Convert to fraction form
    76,826.49/115,160.76 = 29,430.42/x
  3. Step 3: Cross multiply
    76,826.49x = 115,160.76 × 29,430.42
  4. Step 4: Simplify right side
    76,826.49x = 3,389,229,534.32
  5. Step 5: Solve for x
    x = 3,389,229,534.32/76,826.49
  6. Step 6: Final answer
    x = 44,115.38

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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.