Finding the Fourth Proportional to 97,671.12, 134,710.09 and 65,395.48
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Solution
The fourth proportional to 97,671.12, 134,710.09 and 65,395.48 is: 90,194.84
Step by Step Solution
- Step 1: Write the proportion equation
97,671.12 : 134,710.09 = 65,395.48 : x - Step 2: Convert to fraction form
97,671.12/134,710.09 = 65,395.48/x - Step 3: Cross multiply
97,671.12x = 134,710.09 × 65,395.48 - Step 4: Simplify right side
97,671.12x = 8,809,430,369.84 - Step 5: Solve for x
x = 8,809,430,369.84/97,671.12 - Step 6: Final answer
x = 90,194.84
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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.