Finding the Fourth Proportional to 78,874.96, 118,312.74 and 19,710.68
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Solution
The fourth proportional to 78,874.96, 118,312.74 and 19,710.68 is: 29,566.09
Step by Step Solution
- Step 1: Write the proportion equation
78,874.96 : 118,312.74 = 19,710.68 : x - Step 2: Convert to fraction form
78,874.96/118,312.74 = 19,710.68/x - Step 3: Cross multiply
78,874.96x = 118,312.74 × 19,710.68 - Step 4: Simplify right side
78,874.96x = 2,332,024,558.06 - Step 5: Solve for x
x = 2,332,024,558.06/78,874.96 - Step 6: Final answer
x = 29,566.09
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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.