Finding the Fourth Proportional to 86,227.52, 118,994.76 and 47,988.68
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Solution
The fourth proportional to 86,227.52, 118,994.76 and 47,988.68 is: 66,224.81
Step by Step Solution
- Step 1: Write the proportion equation
86,227.52 : 118,994.76 = 47,988.68 : x - Step 2: Convert to fraction form
86,227.52/118,994.76 = 47,988.68/x - Step 3: Cross multiply
86,227.52x = 118,994.76 × 47,988.68 - Step 4: Simplify right side
86,227.52x = 5,710,401,459.32 - Step 5: Solve for x
x = 5,710,401,459.32/86,227.52 - Step 6: Final answer
x = 66,224.81
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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.