Home / 74,430.25-102,713.75-40,896.25

Finding the Fourth Proportional to 74,430.25, 102,713.75 and 40,896.25

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Solution

The fourth proportional to 74,430.25, 102,713.75 and 40,896.25 is: 56,436.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,430.25 : 102,713.75 = 40,896.25 : x
  2. Step 2: Convert to fraction form
    74,430.25/102,713.75 = 40,896.25/x
  3. Step 3: Cross multiply
    74,430.25x = 102,713.75 × 40,896.25
  4. Step 4: Simplify right side
    74,430.25x = 4,200,607,198.44
  5. Step 5: Solve for x
    x = 4,200,607,198.44/74,430.25
  6. Step 6: Final answer
    x = 56,436.83

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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.