Finding the Fourth Proportional to 102,381.24, 141,267.36 and 57,058.08
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Solution
The fourth proportional to 102,381.24, 141,267.36 and 57,058.08 is: 78,729.70
Step by Step Solution
- Step 1: Write the proportion equation
102,381.24 : 141,267.36 = 57,058.08 : x - Step 2: Convert to fraction form
102,381.24/141,267.36 = 57,058.08/x - Step 3: Cross multiply
102,381.24x = 141,267.36 × 57,058.08 - Step 4: Simplify right side
102,381.24x = 8,060,444,328.27 - Step 5: Solve for x
x = 8,060,444,328.27/102,381.24 - Step 6: Final answer
x = 78,729.70
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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.