Finding the Fourth Proportional to 91,110.80, 125,682.36 and 53,377.76
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Solution
The fourth proportional to 91,110.80, 125,682.36 and 53,377.76 is: 73,631.70
Step by Step Solution
- Step 1: Write the proportion equation
91,110.80 : 125,682.36 = 53,377.76 : x - Step 2: Convert to fraction form
91,110.80/125,682.36 = 53,377.76/x - Step 3: Cross multiply
91,110.80x = 125,682.36 × 53,377.76 - Step 4: Simplify right side
91,110.80x = 6,708,642,848.31 - Step 5: Solve for x
x = 6,708,642,848.31/91,110.80 - Step 6: Final answer
x = 73,631.70
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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.