Finding the Fourth Proportional to 88,402.42, 121,991.58 and 48,116.26
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Solution
The fourth proportional to 88,402.42, 121,991.58 and 48,116.26 is: 66,398.39
Step by Step Solution
- Step 1: Write the proportion equation
88,402.42 : 121,991.58 = 48,116.26 : x - Step 2: Convert to fraction form
88,402.42/121,991.58 = 48,116.26/x - Step 3: Cross multiply
88,402.42x = 121,991.58 × 48,116.26 - Step 4: Simplify right side
88,402.42x = 5,869,778,581.09 - Step 5: Solve for x
x = 5,869,778,581.09/88,402.42 - Step 6: Final answer
x = 66,398.39
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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.