Finding the Fourth Proportional to 79,726.92, 119,531.82 and 38,203.08
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Solution
The fourth proportional to 79,726.92, 119,531.82 and 38,203.08 is: 57,276.56
Step by Step Solution
- Step 1: Write the proportion equation
79,726.92 : 119,531.82 = 38,203.08 : x - Step 2: Convert to fraction form
79,726.92/119,531.82 = 38,203.08/x - Step 3: Cross multiply
79,726.92x = 119,531.82 × 38,203.08 - Step 4: Simplify right side
79,726.92x = 4,566,483,682.01 - Step 5: Solve for x
x = 4,566,483,682.01/79,726.92 - Step 6: Final answer
x = 57,276.56
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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.