Finding the Fourth Proportional to 115,312.83, 172,917.28 and 48,718.68
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Solution
The fourth proportional to 115,312.83, 172,917.28 and 48,718.68 is: 73,056.07
Step by Step Solution
- Step 1: Write the proportion equation
115,312.83 : 172,917.28 = 48,718.68 : x - Step 2: Convert to fraction form
115,312.83/172,917.28 = 48,718.68/x - Step 3: Cross multiply
115,312.83x = 172,917.28 × 48,718.68 - Step 4: Simplify right side
115,312.83x = 8,424,301,630.79 - Step 5: Solve for x
x = 8,424,301,630.79/115,312.83 - Step 6: Final answer
x = 73,056.07
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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.