Finding the Fourth Proportional to 85,400.98, 117,854.30 and 47,160.48
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Solution
The fourth proportional to 85,400.98, 117,854.30 and 47,160.48 is: 65,081.99
Step by Step Solution
- Step 1: Write the proportion equation
85,400.98 : 117,854.30 = 47,160.48 : x - Step 2: Convert to fraction form
85,400.98/117,854.30 = 47,160.48/x - Step 3: Cross multiply
85,400.98x = 117,854.30 × 47,160.48 - Step 4: Simplify right side
85,400.98x = 5,558,065,358.06 - Step 5: Solve for x
x = 5,558,065,358.06/85,400.98 - Step 6: Final answer
x = 65,081.99
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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.