Finding the Fourth Proportional to 68,962.40, 103,637.36 and 40,886.44
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Solution
The fourth proportional to 68,962.40, 103,637.36 and 40,886.44 is: 61,444.54
Step by Step Solution
- Step 1: Write the proportion equation
68,962.40 : 103,637.36 = 40,886.44 : x - Step 2: Convert to fraction form
68,962.40/103,637.36 = 40,886.44/x - Step 3: Cross multiply
68,962.40x = 103,637.36 × 40,886.44 - Step 4: Simplify right side
68,962.40x = 4,237,362,701.40 - Step 5: Solve for x
x = 4,237,362,701.40/68,962.40 - Step 6: Final answer
x = 61,444.54
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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.