Finding the Fourth Proportional to 76,804.25, 106,038.86 and 73,075.41
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Solution
The fourth proportional to 76,804.25, 106,038.86 and 73,075.41 is: 100,890.68
Step by Step Solution
- Step 1: Write the proportion equation
76,804.25 : 106,038.86 = 73,075.41 : x - Step 2: Convert to fraction form
76,804.25/106,038.86 = 73,075.41/x - Step 3: Cross multiply
76,804.25x = 106,038.86 × 73,075.41 - Step 4: Simplify right side
76,804.25x = 7,748,832,805.06 - Step 5: Solve for x
x = 7,748,832,805.06/76,804.25 - Step 6: Final answer
x = 100,890.68
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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.