Finding the Fourth Proportional to 83,521.26, 115,412.04 and 60,820.74
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Solution
The fourth proportional to 83,521.26, 115,412.04 and 60,820.74 is: 84,043.82
Step by Step Solution
- Step 1: Write the proportion equation
83,521.26 : 115,412.04 = 60,820.74 : x - Step 2: Convert to fraction form
83,521.26/115,412.04 = 60,820.74/x - Step 3: Cross multiply
83,521.26x = 115,412.04 × 60,820.74 - Step 4: Simplify right side
83,521.26x = 7,019,445,677.71 - Step 5: Solve for x
x = 7,019,445,677.71/83,521.26 - Step 6: Final answer
x = 84,043.82
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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.