Finding the Fourth Proportional to 76,304.09, 114,461.30 and 28,277.17
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Solution
The fourth proportional to 76,304.09, 114,461.30 and 28,277.17 is: 42,417.66
Step by Step Solution
- Step 1: Write the proportion equation
76,304.09 : 114,461.30 = 28,277.17 : x - Step 2: Convert to fraction form
76,304.09/114,461.30 = 28,277.17/x - Step 3: Cross multiply
76,304.09x = 114,461.30 × 28,277.17 - Step 4: Simplify right side
76,304.09x = 3,236,641,423.06 - Step 5: Solve for x
x = 3,236,641,423.06/76,304.09 - Step 6: Final answer
x = 42,417.66
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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.