Finding the Fourth Proportional to 87,967.96, 121,396.00 and 47,681.68
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Solution
The fourth proportional to 87,967.96, 121,396.00 and 47,681.68 is: 65,800.84
Step by Step Solution
- Step 1: Write the proportion equation
87,967.96 : 121,396.00 = 47,681.68 : x - Step 2: Convert to fraction form
87,967.96/121,396.00 = 47,681.68/x - Step 3: Cross multiply
87,967.96x = 121,396.00 × 47,681.68 - Step 4: Simplify right side
87,967.96x = 5,788,364,986.87 - Step 5: Solve for x
x = 5,788,364,986.87/87,967.96 - Step 6: Final answer
x = 65,800.84
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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.