Finding the Fourth Proportional to 92,890.68, 128,191.68 and 54,652.92
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Solution
The fourth proportional to 92,890.68, 128,191.68 and 54,652.92 is: 75,422.52
Step by Step Solution
- Step 1: Write the proportion equation
92,890.68 : 128,191.68 = 54,652.92 : x - Step 2: Convert to fraction form
92,890.68/128,191.68 = 54,652.92/x - Step 3: Cross multiply
92,890.68x = 128,191.68 × 54,652.92 - Step 4: Simplify right side
92,890.68x = 7,006,049,631.71 - Step 5: Solve for x
x = 7,006,049,631.71/92,890.68 - Step 6: Final answer
x = 75,422.52
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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.