Home / 79,749.10-119,623.83-74,877.58

Finding the Fourth Proportional to 79,749.10, 119,623.83 and 74,877.58

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Solution

The fourth proportional to 79,749.10, 119,623.83 and 74,877.58 is: 112,316.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,749.10 : 119,623.83 = 74,877.58 : x
  2. Step 2: Convert to fraction form
    79,749.10/119,623.83 = 74,877.58/x
  3. Step 3: Cross multiply
    79,749.10x = 119,623.83 × 74,877.58
  4. Step 4: Simplify right side
    79,749.10x = 8,957,142,900.73
  5. Step 5: Solve for x
    x = 8,957,142,900.73/79,749.10
  6. Step 6: Final answer
    x = 112,316.54

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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.