Finding the Fourth Proportional to 86,101.62, 129,152.67 and 26,130.59
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Solution
The fourth proportional to 86,101.62, 129,152.67 and 26,130.59 is: 39,195.95
Step by Step Solution
- Step 1: Write the proportion equation
86,101.62 : 129,152.67 = 26,130.59 : x - Step 2: Convert to fraction form
86,101.62/129,152.67 = 26,130.59/x - Step 3: Cross multiply
86,101.62x = 129,152.67 × 26,130.59 - Step 4: Simplify right side
86,101.62x = 3,374,834,821.41 - Step 5: Solve for x
x = 3,374,834,821.41/86,101.62 - Step 6: Final answer
x = 39,195.95
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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.