Finding the Fourth Proportional to 84,280.62, 126,420.06 and 48,719.31
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Solution
The fourth proportional to 84,280.62, 126,420.06 and 48,719.31 is: 73,078.46
Step by Step Solution
- Step 1: Write the proportion equation
84,280.62 : 126,420.06 = 48,719.31 : x - Step 2: Convert to fraction form
84,280.62/126,420.06 = 48,719.31/x - Step 3: Cross multiply
84,280.62x = 126,420.06 × 48,719.31 - Step 4: Simplify right side
84,280.62x = 6,159,097,217.66 - Step 5: Solve for x
x = 6,159,097,217.66/84,280.62 - Step 6: Final answer
x = 73,078.46
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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.