Finding the Fourth Proportional to 92,919.14, 128,248.82 and 61,091.00
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Solution
The fourth proportional to 92,919.14, 128,248.82 and 61,091.00 is: 84,318.99
Step by Step Solution
- Step 1: Write the proportion equation
92,919.14 : 128,248.82 = 61,091.00 : x - Step 2: Convert to fraction form
92,919.14/128,248.82 = 61,091.00/x - Step 3: Cross multiply
92,919.14x = 128,248.82 × 61,091.00 - Step 4: Simplify right side
92,919.14x = 7,834,847,715.92 - Step 5: Solve for x
x = 7,834,847,715.92/92,919.14 - Step 6: Final answer
x = 84,318.99
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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.