Finding the Fourth Proportional to 81,089.82, 121,646.37 and 24,934.65
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Solution
The fourth proportional to 81,089.82, 121,646.37 and 24,934.65 is: 37,405.55
Step by Step Solution
- Step 1: Write the proportion equation
81,089.82 : 121,646.37 = 24,934.65 : x - Step 2: Convert to fraction form
81,089.82/121,646.37 = 24,934.65/x - Step 3: Cross multiply
81,089.82x = 121,646.37 × 24,934.65 - Step 4: Simplify right side
81,089.82x = 3,033,209,659.72 - Step 5: Solve for x
x = 3,033,209,659.72/81,089.82 - Step 6: Final answer
x = 37,405.55
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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.