Finding the Fourth Proportional to 79,215.41, 118,739.55 and 29,263.52
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Solution
The fourth proportional to 79,215.41, 118,739.55 and 29,263.52 is: 43,864.41
Step by Step Solution
- Step 1: Write the proportion equation
79,215.41 : 118,739.55 = 29,263.52 : x - Step 2: Convert to fraction form
79,215.41/118,739.55 = 29,263.52/x - Step 3: Cross multiply
79,215.41x = 118,739.55 × 29,263.52 - Step 4: Simplify right side
79,215.41x = 3,474,737,196.22 - Step 5: Solve for x
x = 3,474,737,196.22/79,215.41 - Step 6: Final answer
x = 43,864.41
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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.