Finding the Fourth Proportional to 93,421.26, 128,920.13 and 50,977.06
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Solution
The fourth proportional to 93,421.26, 128,920.13 and 50,977.06 is: 70,347.68
Step by Step Solution
- Step 1: Write the proportion equation
93,421.26 : 128,920.13 = 50,977.06 : x - Step 2: Convert to fraction form
93,421.26/128,920.13 = 50,977.06/x - Step 3: Cross multiply
93,421.26x = 128,920.13 × 50,977.06 - Step 4: Simplify right side
93,421.26x = 6,571,969,202.22 - Step 5: Solve for x
x = 6,571,969,202.22/93,421.26 - Step 6: Final answer
x = 70,347.68
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.