Finding the Fourth Proportional to 76,430.99, 114,586.19 and 48,291.74
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Solution
The fourth proportional to 76,430.99, 114,586.19 and 48,291.74 is: 72,399.51
Step by Step Solution
- Step 1: Write the proportion equation
76,430.99 : 114,586.19 = 48,291.74 : x - Step 2: Convert to fraction form
76,430.99/114,586.19 = 48,291.74/x - Step 3: Cross multiply
76,430.99x = 114,586.19 × 48,291.74 - Step 4: Simplify right side
76,430.99x = 5,533,566,495.07 - Step 5: Solve for x
x = 5,533,566,495.07/76,430.99 - Step 6: Final answer
x = 72,399.51
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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.