Home / 74,648.36-103,012.67-40,656.10

Finding the Fourth Proportional to 74,648.36, 103,012.67 and 40,656.10

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Solution

The fourth proportional to 74,648.36, 103,012.67 and 40,656.10 is: 56,104.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,648.36 : 103,012.67 = 40,656.10 : x
  2. Step 2: Convert to fraction form
    74,648.36/103,012.67 = 40,656.10/x
  3. Step 3: Cross multiply
    74,648.36x = 103,012.67 × 40,656.10
  4. Step 4: Simplify right side
    74,648.36x = 4,188,092,951.97
  5. Step 5: Solve for x
    x = 4,188,092,951.97/74,648.36
  6. Step 6: Final answer
    x = 56,104.29

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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.