Finding the Fourth Proportional to 98,374.74, 135,740.21 and 55,348.26
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Solution
The fourth proportional to 98,374.74, 135,740.21 and 55,348.26 is: 76,371.07
Step by Step Solution
- Step 1: Write the proportion equation
98,374.74 : 135,740.21 = 55,348.26 : x - Step 2: Convert to fraction form
98,374.74/135,740.21 = 55,348.26/x - Step 3: Cross multiply
98,374.74x = 135,740.21 × 55,348.26 - Step 4: Simplify right side
98,374.74x = 7,512,984,158.79 - Step 5: Solve for x
x = 7,512,984,158.79/98,374.74 - Step 6: Final answer
x = 76,371.07
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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.