Finding the Fourth Proportional to 91,089.36, 125,718.68 and 67,285.08
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Solution
The fourth proportional to 91,089.36, 125,718.68 and 67,285.08 is: 92,864.76
Step by Step Solution
- Step 1: Write the proportion equation
91,089.36 : 125,718.68 = 67,285.08 : x - Step 2: Convert to fraction form
91,089.36/125,718.68 = 67,285.08/x - Step 3: Cross multiply
91,089.36x = 125,718.68 × 67,285.08 - Step 4: Simplify right side
91,089.36x = 8,458,991,609.51 - Step 5: Solve for x
x = 8,458,991,609.51/91,089.36 - Step 6: Final answer
x = 92,864.76
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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.