Finding the Fourth Proportional to 87,802.01, 121,137.09 and 57,161.07
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Solution
The fourth proportional to 87,802.01, 121,137.09 and 57,161.07 is: 78,862.96
Step by Step Solution
- Step 1: Write the proportion equation
87,802.01 : 121,137.09 = 57,161.07 : x - Step 2: Convert to fraction form
87,802.01/121,137.09 = 57,161.07/x - Step 3: Cross multiply
87,802.01x = 121,137.09 × 57,161.07 - Step 4: Simplify right side
87,802.01x = 6,924,325,681.09 - Step 5: Solve for x
x = 6,924,325,681.09/87,802.01 - Step 6: Final answer
x = 78,862.96
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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.