Finding the Fourth Proportional to 75,928.35, 113,827.71 and 53,671.71
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Solution
The fourth proportional to 75,928.35, 113,827.71 and 53,671.71 is: 80,461.75
Step by Step Solution
- Step 1: Write the proportion equation
75,928.35 : 113,827.71 = 53,671.71 : x - Step 2: Convert to fraction form
75,928.35/113,827.71 = 53,671.71/x - Step 3: Cross multiply
75,928.35x = 113,827.71 × 53,671.71 - Step 4: Simplify right side
75,928.35x = 6,109,327,841.08 - Step 5: Solve for x
x = 6,109,327,841.08/75,928.35 - Step 6: Final answer
x = 80,461.75
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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.