Finding the Fourth Proportional to 87,448.71, 131,177.16 and 28,288.99
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Solution
The fourth proportional to 87,448.71, 131,177.16 and 28,288.99 is: 42,434.81
Step by Step Solution
- Step 1: Write the proportion equation
87,448.71 : 131,177.16 = 28,288.99 : x - Step 2: Convert to fraction form
87,448.71/131,177.16 = 28,288.99/x - Step 3: Cross multiply
87,448.71x = 131,177.16 × 28,288.99 - Step 4: Simplify right side
87,448.71x = 3,710,868,898.08 - Step 5: Solve for x
x = 3,710,868,898.08/87,448.71 - Step 6: Final answer
x = 42,434.81
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.