Finding the Fourth Proportional to 75,854.28, 113,696.64 and 28,423.74
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Solution
The fourth proportional to 75,854.28, 113,696.64 and 28,423.74 is: 42,603.84
Step by Step Solution
- Step 1: Write the proportion equation
75,854.28 : 113,696.64 = 28,423.74 : x - Step 2: Convert to fraction form
75,854.28/113,696.64 = 28,423.74/x - Step 3: Cross multiply
75,854.28x = 113,696.64 × 28,423.74 - Step 4: Simplify right side
75,854.28x = 3,231,683,734.23 - Step 5: Solve for x
x = 3,231,683,734.23/75,854.28 - Step 6: Final answer
x = 42,603.84
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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.