Finding the Fourth Proportional to 98,423.24, 135,842.60 and 61,646.52
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Solution
The fourth proportional to 98,423.24, 135,842.60 and 61,646.52 is: 85,083.80
Step by Step Solution
- Step 1: Write the proportion equation
98,423.24 : 135,842.60 = 61,646.52 : x - Step 2: Convert to fraction form
98,423.24/135,842.60 = 61,646.52/x - Step 3: Cross multiply
98,423.24x = 135,842.60 × 61,646.52 - Step 4: Simplify right side
98,423.24x = 8,374,223,557.75 - Step 5: Solve for x
x = 8,374,223,557.75/98,423.24 - Step 6: Final answer
x = 85,083.80
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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.