Finding the Fourth Proportional to 75,930.50, 104,790.58 and 42,402.98
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Solution
The fourth proportional to 75,930.50, 104,790.58 and 42,402.98 is: 58,519.74
Step by Step Solution
- Step 1: Write the proportion equation
75,930.50 : 104,790.58 = 42,402.98 : x - Step 2: Convert to fraction form
75,930.50/104,790.58 = 42,402.98/x - Step 3: Cross multiply
75,930.50x = 104,790.58 × 42,402.98 - Step 4: Simplify right side
75,930.50x = 4,443,432,867.93 - Step 5: Solve for x
x = 4,443,432,867.93/75,930.50 - Step 6: Final answer
x = 58,519.74
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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.