Finding the Fourth Proportional to 73,963.19, 110,972.49 and 38,402.31
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Solution
The fourth proportional to 73,963.19, 110,972.49 and 38,402.31 is: 57,617.85
Step by Step Solution
- Step 1: Write the proportion equation
73,963.19 : 110,972.49 = 38,402.31 : x - Step 2: Convert to fraction form
73,963.19/110,972.49 = 38,402.31/x - Step 3: Cross multiply
73,963.19x = 110,972.49 × 38,402.31 - Step 4: Simplify right side
73,963.19x = 4,261,599,962.45 - Step 5: Solve for x
x = 4,261,599,962.45/73,963.19 - Step 6: Final answer
x = 57,617.85
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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.