Finding the Fourth Proportional to 75,169.05, 103,683.35 and 48,345.50
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Solution
The fourth proportional to 75,169.05, 103,683.35 and 48,345.50 is: 66,684.66
Step by Step Solution
- Step 1: Write the proportion equation
75,169.05 : 103,683.35 = 48,345.50 : x - Step 2: Convert to fraction form
75,169.05/103,683.35 = 48,345.50/x - Step 3: Cross multiply
75,169.05x = 103,683.35 × 48,345.50 - Step 4: Simplify right side
75,169.05x = 5,012,622,637.28 - Step 5: Solve for x
x = 5,012,622,637.28/75,169.05 - Step 6: Final answer
x = 66,684.66
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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.