Finding the Fourth Proportional to 86,077.80, 129,116.70 and 22,897.80
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Solution
The fourth proportional to 86,077.80, 129,116.70 and 22,897.80 is: 34,346.70
Step by Step Solution
- Step 1: Write the proportion equation
86,077.80 : 129,116.70 = 22,897.80 : x - Step 2: Convert to fraction form
86,077.80/129,116.70 = 22,897.80/x - Step 3: Cross multiply
86,077.80x = 129,116.70 × 22,897.80 - Step 4: Simplify right side
86,077.80x = 2,956,488,373.26 - Step 5: Solve for x
x = 2,956,488,373.26/86,077.80 - Step 6: Final answer
x = 34,346.70
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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.