Home / 74,890.44-103,348.80-43,065.60

Finding the Fourth Proportional to 74,890.44, 103,348.80 and 43,065.60

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Solution

The fourth proportional to 74,890.44, 103,348.80 and 43,065.60 is: 59,430.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,890.44 : 103,348.80 = 43,065.60 : x
  2. Step 2: Convert to fraction form
    74,890.44/103,348.80 = 43,065.60/x
  3. Step 3: Cross multiply
    74,890.44x = 103,348.80 × 43,065.60
  4. Step 4: Simplify right side
    74,890.44x = 4,450,778,081.28
  5. Step 5: Solve for x
    x = 4,450,778,081.28/74,890.44
  6. Step 6: Final answer
    x = 59,430.52

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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.