Finding the Fourth Proportional to 81,541.18, 112,422.66 and 52,810.08
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Solution
The fourth proportional to 81,541.18, 112,422.66 and 52,810.08 is: 72,810.45
Step by Step Solution
- Step 1: Write the proportion equation
81,541.18 : 112,422.66 = 52,810.08 : x - Step 2: Convert to fraction form
81,541.18/112,422.66 = 52,810.08/x - Step 3: Cross multiply
81,541.18x = 112,422.66 × 52,810.08 - Step 4: Simplify right side
81,541.18x = 5,937,049,668.41 - Step 5: Solve for x
x = 5,937,049,668.41/81,541.18 - Step 6: Final answer
x = 72,810.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.