Finding the Fourth Proportional to 87,926.79, 121,331.58 and 49,689.66
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Solution
The fourth proportional to 87,926.79, 121,331.58 and 49,689.66 is: 68,567.55
Step by Step Solution
- Step 1: Write the proportion equation
87,926.79 : 121,331.58 = 49,689.66 : x - Step 2: Convert to fraction form
87,926.79/121,331.58 = 49,689.66/x - Step 3: Cross multiply
87,926.79x = 121,331.58 × 49,689.66 - Step 4: Simplify right side
87,926.79x = 6,028,924,957.46 - Step 5: Solve for x
x = 6,028,924,957.46/87,926.79 - Step 6: Final answer
x = 68,567.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.