Finding the Fourth Proportional to 97,493.61, 134,542.08 and 57,208.05
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Solution
The fourth proportional to 97,493.61, 134,542.08 and 57,208.05 is: 78,947.63
Step by Step Solution
- Step 1: Write the proportion equation
97,493.61 : 134,542.08 = 57,208.05 : x - Step 2: Convert to fraction form
97,493.61/134,542.08 = 57,208.05/x - Step 3: Cross multiply
97,493.61x = 134,542.08 × 57,208.05 - Step 4: Simplify right side
97,493.61x = 7,696,889,420.00 - Step 5: Solve for x
x = 7,696,889,420.00/97,493.61 - Step 6: Final answer
x = 78,947.63
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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.