Finding the Fourth Proportional to 91,267.84, 125,867.80 and 76,004.92
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Solution
The fourth proportional to 91,267.84, 125,867.80 and 76,004.92 is: 104,818.65
Step by Step Solution
- Step 1: Write the proportion equation
91,267.84 : 125,867.80 = 76,004.92 : x - Step 2: Convert to fraction form
91,267.84/125,867.80 = 76,004.92/x - Step 3: Cross multiply
91,267.84x = 125,867.80 × 76,004.92 - Step 4: Simplify right side
91,267.84x = 9,566,571,400.15 - Step 5: Solve for x
x = 9,566,571,400.15/91,267.84 - Step 6: Final answer
x = 104,818.65
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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.