Finding the Fourth Proportional to 81,873.96, 122,810.93 and 22,709.63
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Solution
The fourth proportional to 81,873.96, 122,810.93 and 22,709.63 is: 34,064.45
Step by Step Solution
- Step 1: Write the proportion equation
81,873.96 : 122,810.93 = 22,709.63 : x - Step 2: Convert to fraction form
81,873.96/122,810.93 = 22,709.63/x - Step 3: Cross multiply
81,873.96x = 122,810.93 × 22,709.63 - Step 4: Simplify right side
81,873.96x = 2,788,991,144.06 - Step 5: Solve for x
x = 2,788,991,144.06/81,873.96 - Step 6: Final answer
x = 34,064.45
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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.