Finding the Fourth Proportional to 85,722.30, 118,298.70 and 48,927.79
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Solution
The fourth proportional to 85,722.30, 118,298.70 and 48,927.79 is: 67,521.44
Step by Step Solution
- Step 1: Write the proportion equation
85,722.30 : 118,298.70 = 48,927.79 : x - Step 2: Convert to fraction form
85,722.30/118,298.70 = 48,927.79/x - Step 3: Cross multiply
85,722.30x = 118,298.70 × 48,927.79 - Step 4: Simplify right side
85,722.30x = 5,788,093,655.13 - Step 5: Solve for x
x = 5,788,093,655.13/85,722.30 - Step 6: Final answer
x = 67,521.44
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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.