Finding the Fourth Proportional to 98,402.96, 135,792.18 and 58,129.66
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Solution
The fourth proportional to 98,402.96, 135,792.18 and 58,129.66 is: 80,216.62
Step by Step Solution
- Step 1: Write the proportion equation
98,402.96 : 135,792.18 = 58,129.66 : x - Step 2: Convert to fraction form
98,402.96/135,792.18 = 58,129.66/x - Step 3: Cross multiply
98,402.96x = 135,792.18 × 58,129.66 - Step 4: Simplify right side
98,402.96x = 7,893,553,423.80 - Step 5: Solve for x
x = 7,893,553,423.80/98,402.96 - Step 6: Final answer
x = 80,216.62
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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.