Finding the Fourth Proportional to 90,132.41, 135,157.61 and 48,001.68
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Solution
The fourth proportional to 90,132.41, 135,157.61 and 48,001.68 is: 71,980.68
Step by Step Solution
- Step 1: Write the proportion equation
90,132.41 : 135,157.61 = 48,001.68 : x - Step 2: Convert to fraction form
90,132.41/135,157.61 = 48,001.68/x - Step 3: Cross multiply
90,132.41x = 135,157.61 × 48,001.68 - Step 4: Simplify right side
90,132.41x = 6,487,792,464.79 - Step 5: Solve for x
x = 6,487,792,464.79/90,132.41 - Step 6: Final answer
x = 71,980.68
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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.