Finding the Fourth Proportional to 86,330.70, 119,154.74 and 58,019.99
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Solution
The fourth proportional to 86,330.70, 119,154.74 and 58,019.99 is: 80,079.92
Step by Step Solution
- Step 1: Write the proportion equation
86,330.70 : 119,154.74 = 58,019.99 : x - Step 2: Convert to fraction form
86,330.70/119,154.74 = 58,019.99/x - Step 3: Cross multiply
86,330.70x = 119,154.74 × 58,019.99 - Step 4: Simplify right side
86,330.70x = 6,913,355,937.38 - Step 5: Solve for x
x = 6,913,355,937.38/86,330.70 - Step 6: Final answer
x = 80,079.92
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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.