Finding the Fourth Proportional to 81,824.63, 122,737.14 and 26,420.63
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Solution
The fourth proportional to 81,824.63, 122,737.14 and 26,420.63 is: 39,631.00
Step by Step Solution
- Step 1: Write the proportion equation
81,824.63 : 122,737.14 = 26,420.63 : x - Step 2: Convert to fraction form
81,824.63/122,737.14 = 26,420.63/x - Step 3: Cross multiply
81,824.63x = 122,737.14 × 26,420.63 - Step 4: Simplify right side
81,824.63x = 3,242,791,949.51 - Step 5: Solve for x
x = 3,242,791,949.51/81,824.63 - Step 6: Final answer
x = 39,631.00
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1.5x scale
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.