Finding the Fourth Proportional to 84,432.91, 126,482.92 and 68,655.75
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Solution
The fourth proportional to 84,432.91, 126,482.92 and 68,655.75 is: 102,848.28
Step by Step Solution
- Step 1: Write the proportion equation
84,432.91 : 126,482.92 = 68,655.75 : x - Step 2: Convert to fraction form
84,432.91/126,482.92 = 68,655.75/x - Step 3: Cross multiply
84,432.91x = 126,482.92 × 68,655.75 - Step 4: Simplify right side
84,432.91x = 8,683,779,391.51 - Step 5: Solve for x
x = 8,683,779,391.51/84,432.91 - Step 6: Final answer
x = 102,848.28
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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.