Finding the Fourth Proportional to 83,818.68, 125,810.64 and 61,569.60
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Solution
The fourth proportional to 83,818.68, 125,810.64 and 61,569.60 is: 92,415.09
Step by Step Solution
- Step 1: Write the proportion equation
83,818.68 : 125,810.64 = 61,569.60 : x - Step 2: Convert to fraction form
83,818.68/125,810.64 = 61,569.60/x - Step 3: Cross multiply
83,818.68x = 125,810.64 × 61,569.60 - Step 4: Simplify right side
83,818.68x = 7,746,110,780.54 - Step 5: Solve for x
x = 7,746,110,780.54/83,818.68 - Step 6: Final answer
x = 92,415.09
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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.