Finding the Fourth Proportional to 99,447.24, 137,251.38 and 56,437.31
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Solution
The fourth proportional to 99,447.24, 137,251.38 and 56,437.31 is: 77,891.53
Step by Step Solution
- Step 1: Write the proportion equation
99,447.24 : 137,251.38 = 56,437.31 : x - Step 2: Convert to fraction form
99,447.24/137,251.38 = 56,437.31/x - Step 3: Cross multiply
99,447.24x = 137,251.38 × 56,437.31 - Step 4: Simplify right side
99,447.24x = 7,746,097,994.73 - Step 5: Solve for x
x = 7,746,097,994.73/99,447.24 - Step 6: Final answer
x = 77,891.53
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1.5x scale
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.