Finding the Fourth Proportional to 81,698.16, 122,652.19 and 62,990.08
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Solution
The fourth proportional to 81,698.16, 122,652.19 and 62,990.08 is: 94,566.03
Step by Step Solution
- Step 1: Write the proportion equation
81,698.16 : 122,652.19 = 62,990.08 : x - Step 2: Convert to fraction form
81,698.16/122,652.19 = 62,990.08/x - Step 3: Cross multiply
81,698.16x = 122,652.19 × 62,990.08 - Step 4: Simplify right side
81,698.16x = 7,725,870,796.17 - Step 5: Solve for x
x = 7,725,870,796.17/81,698.16 - Step 6: Final answer
x = 94,566.03
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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.