Finding the Fourth Proportional to 79,390.06, 118,929.40 and 46,040.06
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Solution
The fourth proportional to 79,390.06, 118,929.40 and 46,040.06 is: 68,969.80
Step by Step Solution
- Step 1: Write the proportion equation
79,390.06 : 118,929.40 = 46,040.06 : x - Step 2: Convert to fraction form
79,390.06/118,929.40 = 46,040.06/x - Step 3: Cross multiply
79,390.06x = 118,929.40 × 46,040.06 - Step 4: Simplify right side
79,390.06x = 5,475,517,030.65 - Step 5: Solve for x
x = 5,475,517,030.65/79,390.06 - Step 6: Final answer
x = 68,969.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.