Finding the Fourth Proportional to 79,395.98, 119,130.34 and 34,431.12
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Solution
The fourth proportional to 79,395.98, 119,130.34 and 34,431.12 is: 51,662.45
Step by Step Solution
- Step 1: Write the proportion equation
79,395.98 : 119,130.34 = 34,431.12 : x - Step 2: Convert to fraction form
79,395.98/119,130.34 = 34,431.12/x - Step 3: Cross multiply
79,395.98x = 119,130.34 × 34,431.12 - Step 4: Simplify right side
79,395.98x = 4,101,791,032.18 - Step 5: Solve for x
x = 4,101,791,032.18/79,395.98 - Step 6: Final answer
x = 51,662.45
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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.