Finding the Fourth Proportional to 81,202.95, 121,803.08 and 24,276.99
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Solution
The fourth proportional to 81,202.95, 121,803.08 and 24,276.99 is: 36,415.08
Step by Step Solution
- Step 1: Write the proportion equation
81,202.95 : 121,803.08 = 24,276.99 : x - Step 2: Convert to fraction form
81,202.95/121,803.08 = 24,276.99/x - Step 3: Cross multiply
81,202.95x = 121,803.08 × 24,276.99 - Step 4: Simplify right side
81,202.95x = 2,957,012,215.82 - Step 5: Solve for x
x = 2,957,012,215.82/81,202.95 - Step 6: Final answer
x = 36,415.08
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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.