Finding the Fourth Proportional to 84,703.80, 127,055.70 and 76,927.80
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Solution
The fourth proportional to 84,703.80, 127,055.70 and 76,927.80 is: 115,391.70
Step by Step Solution
- Step 1: Write the proportion equation
84,703.80 : 127,055.70 = 76,927.80 : x - Step 2: Convert to fraction form
84,703.80/127,055.70 = 76,927.80/x - Step 3: Cross multiply
84,703.80x = 127,055.70 × 76,927.80 - Step 4: Simplify right side
84,703.80x = 9,774,115,478.46 - Step 5: Solve for x
x = 9,774,115,478.46/84,703.80 - Step 6: Final answer
x = 115,391.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.