Finding the Fourth Proportional to 81,946.70, 122,833.65 and 46,810.70
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Solution
The fourth proportional to 81,946.70, 122,833.65 and 46,810.70 is: 70,166.70
Step by Step Solution
- Step 1: Write the proportion equation
81,946.70 : 122,833.65 = 46,810.70 : x - Step 2: Convert to fraction form
81,946.70/122,833.65 = 46,810.70/x - Step 3: Cross multiply
81,946.70x = 122,833.65 × 46,810.70 - Step 4: Simplify right side
81,946.70x = 5,749,929,140.06 - Step 5: Solve for x
x = 5,749,929,140.06/81,946.70 - Step 6: Final answer
x = 70,166.70
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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.