Finding the Fourth Proportional to 75,059.76, 103,591.35 and 42,355.02
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Solution
The fourth proportional to 75,059.76, 103,591.35 and 42,355.02 is: 58,454.94
Step by Step Solution
- Step 1: Write the proportion equation
75,059.76 : 103,591.35 = 42,355.02 : x - Step 2: Convert to fraction form
75,059.76/103,591.35 = 42,355.02/x - Step 3: Cross multiply
75,059.76x = 103,591.35 × 42,355.02 - Step 4: Simplify right side
75,059.76x = 4,387,613,701.08 - Step 5: Solve for x
x = 4,387,613,701.08/75,059.76 - Step 6: Final answer
x = 58,454.94
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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.