Finding the Fourth Proportional to 90,274.79, 124,577.68 and 49,987.68
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Solution
The fourth proportional to 90,274.79, 124,577.68 and 49,987.68 is: 68,982.15
Step by Step Solution
- Step 1: Write the proportion equation
90,274.79 : 124,577.68 = 49,987.68 : x - Step 2: Convert to fraction form
90,274.79/124,577.68 = 49,987.68/x - Step 3: Cross multiply
90,274.79x = 124,577.68 × 49,987.68 - Step 4: Simplify right side
90,274.79x = 6,227,348,953.04 - Step 5: Solve for x
x = 6,227,348,953.04/90,274.79 - Step 6: Final answer
x = 68,982.15
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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.