Finding the Fourth Proportional to 94,587.80, 141,881.70 and 38,427.80
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Solution
The fourth proportional to 94,587.80, 141,881.70 and 38,427.80 is: 57,641.70
Step by Step Solution
- Step 1: Write the proportion equation
94,587.80 : 141,881.70 = 38,427.80 : x - Step 2: Convert to fraction form
94,587.80/141,881.70 = 38,427.80/x - Step 3: Cross multiply
94,587.80x = 141,881.70 × 38,427.80 - Step 4: Simplify right side
94,587.80x = 5,452,201,591.26 - Step 5: Solve for x
x = 5,452,201,591.26/94,587.80 - Step 6: Final answer
x = 57,641.70
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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.