Finding the Fourth Proportional to 81,810.08, 122,708.63 and 29,214.08
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Solution
The fourth proportional to 81,810.08, 122,708.63 and 29,214.08 is: 43,818.80
Step by Step Solution
- Step 1: Write the proportion equation
81,810.08 : 122,708.63 = 29,214.08 : x - Step 2: Convert to fraction form
81,810.08/122,708.63 = 29,214.08/x - Step 3: Cross multiply
81,810.08x = 122,708.63 × 29,214.08 - Step 4: Simplify right side
81,810.08x = 3,584,818,973.90 - Step 5: Solve for x
x = 3,584,818,973.90/81,810.08 - Step 6: Final answer
x = 43,818.80
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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.