Finding the Fourth Proportional to 88,351.32, 121,756.86 and 63,157.08
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Solution
The fourth proportional to 88,351.32, 121,756.86 and 63,157.08 is: 87,036.70
Step by Step Solution
- Step 1: Write the proportion equation
88,351.32 : 121,756.86 = 63,157.08 : x - Step 2: Convert to fraction form
88,351.32/121,756.86 = 63,157.08/x - Step 3: Cross multiply
88,351.32x = 121,756.86 × 63,157.08 - Step 4: Simplify right side
88,351.32x = 7,689,807,747.57 - Step 5: Solve for x
x = 7,689,807,747.57/88,351.32 - Step 6: Final answer
x = 87,036.70
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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.