Finding the Fourth Proportional to 88,202.79, 121,720.05 and 47,916.23
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Solution
The fourth proportional to 88,202.79, 121,720.05 and 47,916.23 is: 66,124.50
Step by Step Solution
- Step 1: Write the proportion equation
88,202.79 : 121,720.05 = 47,916.23 : x - Step 2: Convert to fraction form
88,202.79/121,720.05 = 47,916.23/x - Step 3: Cross multiply
88,202.79x = 121,720.05 × 47,916.23 - Step 4: Simplify right side
88,202.79x = 5,832,365,302.81 - Step 5: Solve for x
x = 5,832,365,302.81/88,202.79 - Step 6: Final answer
x = 66,124.50
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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.