Finding the Fourth Proportional to 81,118.42, 121,681.97 and 24,997.08
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Solution
The fourth proportional to 81,118.42, 121,681.97 and 24,997.08 is: 37,496.95
Step by Step Solution
- Step 1: Write the proportion equation
81,118.42 : 121,681.97 = 24,997.08 : x - Step 2: Convert to fraction form
81,118.42/121,681.97 = 24,997.08/x - Step 3: Cross multiply
81,118.42x = 121,681.97 × 24,997.08 - Step 4: Simplify right side
81,118.42x = 3,041,693,509.46 - Step 5: Solve for x
x = 3,041,693,509.46/81,118.42 - Step 6: Final answer
x = 37,496.95
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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.