Finding the Fourth Proportional to 68,426.94, 102,675.64 and 51,781.44
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Solution
The fourth proportional to 68,426.94, 102,675.64 and 51,781.44 is: 77,698.82
Step by Step Solution
- Step 1: Write the proportion equation
68,426.94 : 102,675.64 = 51,781.44 : x - Step 2: Convert to fraction form
68,426.94/102,675.64 = 51,781.44/x - Step 3: Cross multiply
68,426.94x = 102,675.64 × 51,781.44 - Step 4: Simplify right side
68,426.94x = 5,316,692,492.12 - Step 5: Solve for x
x = 5,316,692,492.12/68,426.94 - Step 6: Final answer
x = 77,698.82
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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.