Finding the Fourth Proportional to 73,411.84, 101,306.88 and 39,878.08
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Solution
The fourth proportional to 73,411.84, 101,306.88 and 39,878.08 is: 55,030.96
Step by Step Solution
- Step 1: Write the proportion equation
73,411.84 : 101,306.88 = 39,878.08 : x - Step 2: Convert to fraction form
73,411.84/101,306.88 = 39,878.08/x - Step 3: Cross multiply
73,411.84x = 101,306.88 × 39,878.08 - Step 4: Simplify right side
73,411.84x = 4,039,923,865.19 - Step 5: Solve for x
x = 4,039,923,865.19/73,411.84 - Step 6: Final answer
x = 55,030.96
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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.