Finding the Fourth Proportional to 84,271.28, 126,358.01 and 39,897.65
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Solution
The fourth proportional to 84,271.28, 126,358.01 and 39,897.65 is: 59,823.32
Step by Step Solution
- Step 1: Write the proportion equation
84,271.28 : 126,358.01 = 39,897.65 : x - Step 2: Convert to fraction form
84,271.28/126,358.01 = 39,897.65/x - Step 3: Cross multiply
84,271.28x = 126,358.01 × 39,897.65 - Step 4: Simplify right side
84,271.28x = 5,041,387,458.19 - Step 5: Solve for x
x = 5,041,387,458.19/84,271.28 - Step 6: Final answer
x = 59,823.32
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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.