Finding the Fourth Proportional to 75,062.76, 103,595.49 and 42,358.02
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Solution
The fourth proportional to 75,062.76, 103,595.49 and 42,358.02 is: 58,459.08
Step by Step Solution
- Step 1: Write the proportion equation
75,062.76 : 103,595.49 = 42,358.02 : x - Step 2: Convert to fraction form
75,062.76/103,595.49 = 42,358.02/x - Step 3: Cross multiply
75,062.76x = 103,595.49 × 42,358.02 - Step 4: Simplify right side
75,062.76x = 4,388,099,837.33 - Step 5: Solve for x
x = 4,388,099,837.33/75,062.76 - Step 6: Final answer
x = 58,459.08
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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.