Finding the Fourth Proportional to 75,137.16, 103,682.10 and 44,916.48
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Solution
The fourth proportional to 75,137.16, 103,682.10 and 44,916.48 is: 61,980.45
Step by Step Solution
- Step 1: Write the proportion equation
75,137.16 : 103,682.10 = 44,916.48 : x - Step 2: Convert to fraction form
75,137.16/103,682.10 = 44,916.48/x - Step 3: Cross multiply
75,137.16x = 103,682.10 × 44,916.48 - Step 4: Simplify right side
75,137.16x = 4,657,034,971.01 - Step 5: Solve for x
x = 4,657,034,971.01/75,137.16 - Step 6: Final answer
x = 61,980.45
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1.5x scale
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.