Finding the Fourth Proportional to 75,710.80, 113,438.08 and 53,484.40
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Solution
The fourth proportional to 75,710.80, 113,438.08 and 53,484.40 is: 80,136.09
Step by Step Solution
- Step 1: Write the proportion equation
75,710.80 : 113,438.08 = 53,484.40 : x - Step 2: Convert to fraction form
75,710.80/113,438.08 = 53,484.40/x - Step 3: Cross multiply
75,710.80x = 113,438.08 × 53,484.40 - Step 4: Simplify right side
75,710.80x = 6,067,167,645.95 - Step 5: Solve for x
x = 6,067,167,645.95/75,710.80 - Step 6: Final answer
x = 80,136.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.