Finding the Fourth Proportional to 81,280.63, 121,908.63 and 22,120.91
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Solution
The fourth proportional to 81,280.63, 121,908.63 and 22,120.91 is: 33,178.02
Step by Step Solution
- Step 1: Write the proportion equation
81,280.63 : 121,908.63 = 22,120.91 : x - Step 2: Convert to fraction form
81,280.63/121,908.63 = 22,120.91/x - Step 3: Cross multiply
81,280.63x = 121,908.63 × 22,120.91 - Step 4: Simplify right side
81,280.63x = 2,696,730,137.22 - Step 5: Solve for x
x = 2,696,730,137.22/81,280.63 - Step 6: Final answer
x = 33,178.02
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.