Finding the Fourth Proportional to 96,678.61, 133,389.23 and 62,688.53
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Solution
The fourth proportional to 96,678.61, 133,389.23 and 62,688.53 is: 86,492.50
Step by Step Solution
- Step 1: Write the proportion equation
96,678.61 : 133,389.23 = 62,688.53 : x - Step 2: Convert to fraction form
96,678.61/133,389.23 = 62,688.53/x - Step 3: Cross multiply
96,678.61x = 133,389.23 × 62,688.53 - Step 4: Simplify right side
96,678.61x = 8,361,975,119.19 - Step 5: Solve for x
x = 8,361,975,119.19/96,678.61 - Step 6: Final answer
x = 86,492.50
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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.