Finding the Fourth Proportional to 78,246.56, 107,969.88 and 44,259.68
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Solution
The fourth proportional to 78,246.56, 107,969.88 and 44,259.68 is: 61,072.49
Step by Step Solution
- Step 1: Write the proportion equation
78,246.56 : 107,969.88 = 44,259.68 : x - Step 2: Convert to fraction form
78,246.56/107,969.88 = 44,259.68/x - Step 3: Cross multiply
78,246.56x = 107,969.88 × 44,259.68 - Step 4: Simplify right side
78,246.56x = 4,778,712,338.44 - Step 5: Solve for x
x = 4,778,712,338.44/78,246.56 - Step 6: Final answer
x = 61,072.49
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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.