Home / 76,899.30-115,269.78-29,501.77

Finding the Fourth Proportional to 76,899.30, 115,269.78 and 29,501.77

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Solution

The fourth proportional to 76,899.30, 115,269.78 and 29,501.77 is: 44,222.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,899.30 : 115,269.78 = 29,501.77 : x
  2. Step 2: Convert to fraction form
    76,899.30/115,269.78 = 29,501.77/x
  3. Step 3: Cross multiply
    76,899.30x = 115,269.78 × 29,501.77
  4. Step 4: Simplify right side
    76,899.30x = 3,400,662,576.10
  5. Step 5: Solve for x
    x = 3,400,662,576.10/76,899.30
  6. Step 6: Final answer
    x = 44,222.28

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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.