Finding the Fourth Proportional to 91,283.04, 125,971.56 and 53,557.92
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Solution
The fourth proportional to 91,283.04, 125,971.56 and 53,557.92 is: 73,910.50
Step by Step Solution
- Step 1: Write the proportion equation
91,283.04 : 125,971.56 = 53,557.92 : x - Step 2: Convert to fraction form
91,283.04/125,971.56 = 53,557.92/x - Step 3: Cross multiply
91,283.04x = 125,971.56 × 53,557.92 - Step 4: Simplify right side
91,283.04x = 6,746,774,732.76 - Step 5: Solve for x
x = 6,746,774,732.76/91,283.04 - Step 6: Final answer
x = 73,910.50
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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.