Home / 74,834.40-103,289.21-43,021.79

Finding the Fourth Proportional to 74,834.40, 103,289.21 and 43,021.79

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Solution

The fourth proportional to 74,834.40, 103,289.21 and 43,021.79 is: 59,380.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,834.40 : 103,289.21 = 43,021.79 : x
  2. Step 2: Convert to fraction form
    74,834.40/103,289.21 = 43,021.79/x
  3. Step 3: Cross multiply
    74,834.40x = 103,289.21 × 43,021.79
  4. Step 4: Simplify right side
    74,834.40x = 4,443,686,701.89
  5. Step 5: Solve for x
    x = 4,443,686,701.89/74,834.40
  6. Step 6: Final answer
    x = 59,380.27

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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.