Finding the Fourth Proportional to 89,637.93, 134,394.66 and 39,690.81
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Solution
The fourth proportional to 89,637.93, 134,394.66 and 39,690.81 is: 59,508.66
Step by Step Solution
- Step 1: Write the proportion equation
89,637.93 : 134,394.66 = 39,690.81 : x - Step 2: Convert to fraction form
89,637.93/134,394.66 = 39,690.81/x - Step 3: Cross multiply
89,637.93x = 134,394.66 × 39,690.81 - Step 4: Simplify right side
89,637.93x = 5,334,232,915.07 - Step 5: Solve for x
x = 5,334,232,915.07/89,637.93 - Step 6: Final answer
x = 59,508.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.