Finding the Fourth Proportional to 73,454.41, 101,424.30 and 56,431.68
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Solution
The fourth proportional to 73,454.41, 101,424.30 and 56,431.68 is: 77,919.67
Step by Step Solution
- Step 1: Write the proportion equation
73,454.41 : 101,424.30 = 56,431.68 : x - Step 2: Convert to fraction form
73,454.41/101,424.30 = 56,431.68/x - Step 3: Cross multiply
73,454.41x = 101,424.30 × 56,431.68 - Step 4: Simplify right side
73,454.41x = 5,723,543,641.82 - Step 5: Solve for x
x = 5,723,543,641.82/73,454.41 - Step 6: Final answer
x = 77,919.67
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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.