Finding the Fourth Proportional to 85,854.84, 118,486.96 and 47,626.70
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Solution
The fourth proportional to 85,854.84, 118,486.96 and 47,626.70 is: 65,728.89
Step by Step Solution
- Step 1: Write the proportion equation
85,854.84 : 118,486.96 = 47,626.70 : x - Step 2: Convert to fraction form
85,854.84/118,486.96 = 47,626.70/x - Step 3: Cross multiply
85,854.84x = 118,486.96 × 47,626.70 - Step 4: Simplify right side
85,854.84x = 5,643,142,955.92 - Step 5: Solve for x
x = 5,643,142,955.92/85,854.84 - Step 6: Final answer
x = 65,728.89
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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.