Finding the Fourth Proportional to 87,943.93, 121,363.04 and 47,657.63
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Solution
The fourth proportional to 87,943.93, 121,363.04 and 47,657.63 is: 65,767.76
Step by Step Solution
- Step 1: Write the proportion equation
87,943.93 : 121,363.04 = 47,657.63 : x - Step 2: Convert to fraction form
87,943.93/121,363.04 = 47,657.63/x - Step 3: Cross multiply
87,943.93x = 121,363.04 × 47,657.63 - Step 4: Simplify right side
87,943.93x = 5,783,875,278.55 - Step 5: Solve for x
x = 5,783,875,278.55/87,943.93 - Step 6: Final answer
x = 65,767.76
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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.