Finding the Fourth Proportional to 90,494.58, 135,697.98 and 53,066.79
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Solution
The fourth proportional to 90,494.58, 135,697.98 and 53,066.79 is: 79,574.45
Step by Step Solution
- Step 1: Write the proportion equation
90,494.58 : 135,697.98 = 53,066.79 : x - Step 2: Convert to fraction form
90,494.58/135,697.98 = 53,066.79/x - Step 3: Cross multiply
90,494.58x = 135,697.98 × 53,066.79 - Step 4: Simplify right side
90,494.58x = 7,201,056,208.08 - Step 5: Solve for x
x = 7,201,056,208.08/90,494.58 - Step 6: Final answer
x = 79,574.45
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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.