Finding the Fourth Proportional to 79,953.36, 119,908.14 and 30,029.60
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Solution
The fourth proportional to 79,953.36, 119,908.14 and 30,029.60 is: 45,036.17
Step by Step Solution
- Step 1: Write the proportion equation
79,953.36 : 119,908.14 = 30,029.60 : x - Step 2: Convert to fraction form
79,953.36/119,908.14 = 30,029.60/x - Step 3: Cross multiply
79,953.36x = 119,908.14 × 30,029.60 - Step 4: Simplify right side
79,953.36x = 3,600,792,881.40 - Step 5: Solve for x
x = 3,600,792,881.40/79,953.36 - Step 6: Final answer
x = 45,036.17
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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.