Finding the Fourth Proportional to 76,930.65, 106,246.14 and 58,585.14
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Solution
The fourth proportional to 76,930.65, 106,246.14 and 58,585.14 is: 80,909.82
Step by Step Solution
- Step 1: Write the proportion equation
76,930.65 : 106,246.14 = 58,585.14 : x - Step 2: Convert to fraction form
76,930.65/106,246.14 = 58,585.14/x - Step 3: Cross multiply
76,930.65x = 106,246.14 × 58,585.14 - Step 4: Simplify right side
76,930.65x = 6,224,444,986.36 - Step 5: Solve for x
x = 6,224,444,986.36/76,930.65 - Step 6: Final answer
x = 80,909.82
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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.