Finding the Fourth Proportional to 98,216.06, 135,531.79 and 57,920.59
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Solution
The fourth proportional to 98,216.06, 135,531.79 and 57,920.59 is: 79,926.65
Step by Step Solution
- Step 1: Write the proportion equation
98,216.06 : 135,531.79 = 57,920.59 : x - Step 2: Convert to fraction form
98,216.06/135,531.79 = 57,920.59/x - Step 3: Cross multiply
98,216.06x = 135,531.79 × 57,920.59 - Step 4: Simplify right side
98,216.06x = 7,850,080,756.93 - Step 5: Solve for x
x = 7,850,080,756.93/98,216.06 - Step 6: Final answer
x = 79,926.65
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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.