Finding the Fourth Proportional to 97,765.75, 134,916.74 and 53,053.75
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Solution
The fourth proportional to 97,765.75, 134,916.74 and 53,053.75 is: 73,214.18
Step by Step Solution
- Step 1: Write the proportion equation
97,765.75 : 134,916.74 = 53,053.75 : x - Step 2: Convert to fraction form
97,765.75/134,916.74 = 53,053.75/x - Step 3: Cross multiply
97,765.75x = 134,916.74 × 53,053.75 - Step 4: Simplify right side
97,765.75x = 7,157,838,994.78 - Step 5: Solve for x
x = 7,157,838,994.78/97,765.75 - Step 6: Final answer
x = 73,214.18
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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.