Finding the Fourth Proportional to 76,949.18, 115,430.35 and 27,024.93
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Solution
The fourth proportional to 76,949.18, 115,430.35 and 27,024.93 is: 40,539.71
Step by Step Solution
- Step 1: Write the proportion equation
76,949.18 : 115,430.35 = 27,024.93 : x - Step 2: Convert to fraction form
76,949.18/115,430.35 = 27,024.93/x - Step 3: Cross multiply
76,949.18x = 115,430.35 × 27,024.93 - Step 4: Simplify right side
76,949.18x = 3,119,497,128.63 - Step 5: Solve for x
x = 3,119,497,128.63/76,949.18 - Step 6: Final answer
x = 40,539.71
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1.5x scale
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.