Finding the Fourth Proportional to 97,987.44, 146,990.88 and 38,863.92
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Solution
The fourth proportional to 97,987.44, 146,990.88 and 38,863.92 is: 58,299.74
Step by Step Solution
- Step 1: Write the proportion equation
97,987.44 : 146,990.88 = 38,863.92 : x - Step 2: Convert to fraction form
97,987.44/146,990.88 = 38,863.92/x - Step 3: Cross multiply
97,987.44x = 146,990.88 × 38,863.92 - Step 4: Simplify right side
97,987.44x = 5,712,641,801.05 - Step 5: Solve for x
x = 5,712,641,801.05/97,987.44 - Step 6: Final answer
x = 58,299.74
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1.5x scale
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.