Finding the Fourth Proportional to 87,132.12, 130,698.36 and 23,953.08
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Solution
The fourth proportional to 87,132.12, 130,698.36 and 23,953.08 is: 35,929.67
Step by Step Solution
- Step 1: Write the proportion equation
87,132.12 : 130,698.36 = 23,953.08 : x - Step 2: Convert to fraction form
87,132.12/130,698.36 = 23,953.08/x - Step 3: Cross multiply
87,132.12x = 130,698.36 × 23,953.08 - Step 4: Simplify right side
87,132.12x = 3,130,628,272.95 - Step 5: Solve for x
x = 3,130,628,272.95/87,132.12 - Step 6: Final answer
x = 35,929.67
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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.