Finding the Fourth Proportional to 86,235.84, 118,985.76 and 48,496.32
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Solution
The fourth proportional to 86,235.84, 118,985.76 and 48,496.32 is: 66,913.84
Step by Step Solution
- Step 1: Write the proportion equation
86,235.84 : 118,985.76 = 48,496.32 : x - Step 2: Convert to fraction form
86,235.84/118,985.76 = 48,496.32/x - Step 3: Cross multiply
86,235.84x = 118,985.76 × 48,496.32 - Step 4: Simplify right side
86,235.84x = 5,770,371,492.40 - Step 5: Solve for x
x = 5,770,371,492.40/86,235.84 - Step 6: Final answer
x = 66,913.84
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1.5x scale
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.