Finding the Fourth Proportional to 90,090.36, 124,326.99 and 49,804.74
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Solution
The fourth proportional to 90,090.36, 124,326.99 and 49,804.74 is: 68,731.81
Step by Step Solution
- Step 1: Write the proportion equation
90,090.36 : 124,326.99 = 49,804.74 : x - Step 2: Convert to fraction form
90,090.36/124,326.99 = 49,804.74/x - Step 3: Cross multiply
90,090.36x = 124,326.99 × 49,804.74 - Step 4: Simplify right side
90,090.36x = 6,192,073,411.93 - Step 5: Solve for x
x = 6,192,073,411.93/90,090.36 - Step 6: Final answer
x = 68,731.81
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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.