Finding the Fourth Proportional to 87,185.39, 130,656.29 and 47,117.99
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Solution
The fourth proportional to 87,185.39, 130,656.29 and 47,117.99 is: 70,611.17
Step by Step Solution
- Step 1: Write the proportion equation
87,185.39 : 130,656.29 = 47,117.99 : x - Step 2: Convert to fraction form
87,185.39/130,656.29 = 47,117.99/x - Step 3: Cross multiply
87,185.39x = 130,656.29 × 47,117.99 - Step 4: Simplify right side
87,185.39x = 6,156,262,210.09 - Step 5: Solve for x
x = 6,156,262,210.09/87,185.39 - Step 6: Final answer
x = 70,611.17
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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.