Finding the Fourth Proportional to 83,394.84, 115,056.36 and 47,559.12
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Solution
The fourth proportional to 83,394.84, 115,056.36 and 47,559.12 is: 65,615.32
Step by Step Solution
- Step 1: Write the proportion equation
83,394.84 : 115,056.36 = 47,559.12 : x - Step 2: Convert to fraction form
83,394.84/115,056.36 = 47,559.12/x - Step 3: Cross multiply
83,394.84x = 115,056.36 × 47,559.12 - Step 4: Simplify right side
83,394.84x = 5,471,979,232.00 - Step 5: Solve for x
x = 5,471,979,232.00/83,394.84 - Step 6: Final answer
x = 65,615.32
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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.