Finding the Fourth Proportional to 79,260.95, 118,828.90 and 39,293.70
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Solution
The fourth proportional to 79,260.95, 118,828.90 and 39,293.70 is: 58,909.54
Step by Step Solution
- Step 1: Write the proportion equation
79,260.95 : 118,828.90 = 39,293.70 : x - Step 2: Convert to fraction form
79,260.95/118,828.90 = 39,293.70/x - Step 3: Cross multiply
79,260.95x = 118,828.90 × 39,293.70 - Step 4: Simplify right side
79,260.95x = 4,669,226,530.41 - Step 5: Solve for x
x = 4,669,226,530.41/79,260.95 - Step 6: Final answer
x = 58,909.54
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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.