Finding the Fourth Proportional to 84.79, 116.99 and 52.02
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Solution
The fourth proportional to 84.79, 116.99 and 52.02 is: 71.77
Step by Step Solution
- Step 1: Write the proportion equation
84.79 : 116.99 = 52.02 : x - Step 2: Convert to fraction form
84.79/116.99 = 52.02/x - Step 3: Cross multiply
84.79x = 116.99 × 52.02 - Step 4: Simplify right side
84.79x = 6,085.23 - Step 5: Solve for x
x = 6,085.23/84.79 - Step 6: Final answer
x = 71.77
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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.