Finding the Fourth Proportional to 90,818.68, 125,258.76 and 58,997.84
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Solution
The fourth proportional to 90,818.68, 125,258.76 and 58,997.84 is: 81,370.88
Step by Step Solution
- Step 1: Write the proportion equation
90,818.68 : 125,258.76 = 58,997.84 : x - Step 2: Convert to fraction form
90,818.68/125,258.76 = 58,997.84/x - Step 3: Cross multiply
90,818.68x = 125,258.76 × 58,997.84 - Step 4: Simplify right side
90,818.68x = 7,389,996,281.08 - Step 5: Solve for x
x = 7,389,996,281.08/90,818.68 - Step 6: Final answer
x = 81,370.88
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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.