Finding the Fourth Proportional to 97,655.88, 134,779.48 and 61,849.20
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Solution
The fourth proportional to 97,655.88, 134,779.48 and 61,849.20 is: 85,360.99
Step by Step Solution
- Step 1: Write the proportion equation
97,655.88 : 134,779.48 = 61,849.20 : x - Step 2: Convert to fraction form
97,655.88/134,779.48 = 61,849.20/x - Step 3: Cross multiply
97,655.88x = 134,779.48 × 61,849.20 - Step 4: Simplify right side
97,655.88x = 8,336,003,014.42 - Step 5: Solve for x
x = 8,336,003,014.42/97,655.88 - Step 6: Final answer
x = 85,360.99
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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.