Finding the Fourth Proportional to 103,779.67, 155,565.48 and 40,512.80
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Solution
The fourth proportional to 103,779.67, 155,565.48 and 40,512.80 is: 60,728.59
Step by Step Solution
- Step 1: Write the proportion equation
103,779.67 : 155,565.48 = 40,512.80 : x - Step 2: Convert to fraction form
103,779.67/155,565.48 = 40,512.80/x - Step 3: Cross multiply
103,779.67x = 155,565.48 × 40,512.80 - Step 4: Simplify right side
103,779.67x = 6,302,392,552.24 - Step 5: Solve for x
x = 6,302,392,552.24/103,779.67 - Step 6: Final answer
x = 60,728.59
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.