Finding the Fourth Proportional to 86,710.24, 130,063.52 and 39,963.12
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Solution
The fourth proportional to 86,710.24, 130,063.52 and 39,963.12 is: 59,943.82
Step by Step Solution
- Step 1: Write the proportion equation
86,710.24 : 130,063.52 = 39,963.12 : x - Step 2: Convert to fraction form
86,710.24/130,063.52 = 39,963.12/x - Step 3: Cross multiply
86,710.24x = 130,063.52 × 39,963.12 - Step 4: Simplify right side
86,710.24x = 5,197,743,207.25 - Step 5: Solve for x
x = 5,197,743,207.25/86,710.24 - Step 6: Final answer
x = 59,943.82
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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.