Finding the Fourth Proportional to 87,138.93, 130,696.04 and 27,966.95
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Solution
The fourth proportional to 87,138.93, 130,696.04 and 27,966.95 is: 41,946.45
Step by Step Solution
- Step 1: Write the proportion equation
87,138.93 : 130,696.04 = 27,966.95 : x - Step 2: Convert to fraction form
87,138.93/130,696.04 = 27,966.95/x - Step 3: Cross multiply
87,138.93x = 130,696.04 × 27,966.95 - Step 4: Simplify right side
87,138.93x = 3,655,169,032.32 - Step 5: Solve for x
x = 3,655,169,032.32/87,138.93 - Step 6: Final answer
x = 41,946.45
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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.