Finding the Fourth Proportional to 85,800.48, 128,624.17 and 43,656.99
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Solution
The fourth proportional to 85,800.48, 128,624.17 and 43,656.99 is: 65,446.53
Step by Step Solution
- Step 1: Write the proportion equation
85,800.48 : 128,624.17 = 43,656.99 : x - Step 2: Convert to fraction form
85,800.48/128,624.17 = 43,656.99/x - Step 3: Cross multiply
85,800.48x = 128,624.17 × 43,656.99 - Step 4: Simplify right side
85,800.48x = 5,615,343,885.16 - Step 5: Solve for x
x = 5,615,343,885.16/85,800.48 - Step 6: Final answer
x = 65,446.53
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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.