Finding the Fourth Proportional to 76,813.08, 106,003.99 and 42,827.10
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Solution
The fourth proportional to 76,813.08, 106,003.99 and 42,827.10 is: 59,102.48
Step by Step Solution
- Step 1: Write the proportion equation
76,813.08 : 106,003.99 = 42,827.10 : x - Step 2: Convert to fraction form
76,813.08/106,003.99 = 42,827.10/x - Step 3: Cross multiply
76,813.08x = 106,003.99 × 42,827.10 - Step 4: Simplify right side
76,813.08x = 4,539,843,480.13 - Step 5: Solve for x
x = 4,539,843,480.13/76,813.08 - Step 6: Final answer
x = 59,102.48
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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.