Finding the Fourth Proportional to 92,809.84, 128,077.68 and 50,368.40
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Solution
The fourth proportional to 92,809.84, 128,077.68 and 50,368.40 is: 69,508.45
Step by Step Solution
- Step 1: Write the proportion equation
92,809.84 : 128,077.68 = 50,368.40 : x - Step 2: Convert to fraction form
92,809.84/128,077.68 = 50,368.40/x - Step 3: Cross multiply
92,809.84x = 128,077.68 × 50,368.40 - Step 4: Simplify right side
92,809.84x = 6,451,067,817.31 - Step 5: Solve for x
x = 6,451,067,817.31/92,809.84 - Step 6: Final answer
x = 69,508.45
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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.