Home / 74,648.26-103,015.72-40,658.32

Finding the Fourth Proportional to 74,648.26, 103,015.72 and 40,658.32

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Solution

The fourth proportional to 74,648.26, 103,015.72 and 40,658.32 is: 56,109.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,648.26 : 103,015.72 = 40,658.32 : x
  2. Step 2: Convert to fraction form
    74,648.26/103,015.72 = 40,658.32/x
  3. Step 3: Cross multiply
    74,648.26x = 103,015.72 × 40,658.32
  4. Step 4: Simplify right side
    74,648.26x = 4,188,446,108.79
  5. Step 5: Solve for x
    x = 4,188,446,108.79/74,648.26
  6. Step 6: Final answer
    x = 56,109.09

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1.5x scale

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.