Home / 74,835.40-103,290.58-43,022.78

Finding the Fourth Proportional to 74,835.40, 103,290.58 and 43,022.78

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Solution

The fourth proportional to 74,835.40, 103,290.58 and 43,022.78 is: 59,381.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,835.40 : 103,290.58 = 43,022.78 : x
  2. Step 2: Convert to fraction form
    74,835.40/103,290.58 = 43,022.78/x
  3. Step 3: Cross multiply
    74,835.40x = 103,290.58 × 43,022.78
  4. Step 4: Simplify right side
    74,835.40x = 4,443,847,899.41
  5. Step 5: Solve for x
    x = 4,443,847,899.41/74,835.40
  6. Step 6: Final answer
    x = 59,381.63

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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.