Finding the Fourth Proportional to 70,190.18, 105,358.19 and 40,665.70
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Solution
The fourth proportional to 70,190.18, 105,358.19 and 40,665.70 is: 61,040.80
Step by Step Solution
- Step 1: Write the proportion equation
70,190.18 : 105,358.19 = 40,665.70 : x - Step 2: Convert to fraction form
70,190.18/105,358.19 = 40,665.70/x - Step 3: Cross multiply
70,190.18x = 105,358.19 × 40,665.70 - Step 4: Simplify right side
70,190.18x = 4,284,464,547.08 - Step 5: Solve for x
x = 4,284,464,547.08/70,190.18 - Step 6: Final answer
x = 61,040.80
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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.