Finding the Fourth Proportional to 97,759.21, 134,973.02 and 65,916.49
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Solution
The fourth proportional to 97,759.21, 134,973.02 and 65,916.49 is: 91,008.79
Step by Step Solution
- Step 1: Write the proportion equation
97,759.21 : 134,973.02 = 65,916.49 : x - Step 2: Convert to fraction form
97,759.21/134,973.02 = 65,916.49/x - Step 3: Cross multiply
97,759.21x = 134,973.02 × 65,916.49 - Step 4: Simplify right side
97,759.21x = 8,896,947,393.52 - Step 5: Solve for x
x = 8,896,947,393.52/97,759.21 - Step 6: Final answer
x = 91,008.79
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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.