Finding the Fourth Proportional to 75,101.02, 103,638.48 and 40,644.95
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Solution
The fourth proportional to 75,101.02, 103,638.48 and 40,644.95 is: 56,089.53
Step by Step Solution
- Step 1: Write the proportion equation
75,101.02 : 103,638.48 = 40,644.95 : x - Step 2: Convert to fraction form
75,101.02/103,638.48 = 40,644.95/x - Step 3: Cross multiply
75,101.02x = 103,638.48 × 40,644.95 - Step 4: Simplify right side
75,101.02x = 4,212,380,319.48 - Step 5: Solve for x
x = 4,212,380,319.48/75,101.02 - Step 6: Final answer
x = 56,089.53
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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.