Finding the Fourth Proportional to 96,681.42, 133,422.66 and 54,243.09
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Solution
The fourth proportional to 96,681.42, 133,422.66 and 54,243.09 is: 74,856.75
Step by Step Solution
- Step 1: Write the proportion equation
96,681.42 : 133,422.66 = 54,243.09 : x - Step 2: Convert to fraction form
96,681.42/133,422.66 = 54,243.09/x - Step 3: Cross multiply
96,681.42x = 133,422.66 × 54,243.09 - Step 4: Simplify right side
96,681.42x = 7,237,257,354.42 - Step 5: Solve for x
x = 7,237,257,354.42/96,681.42 - Step 6: Final answer
x = 74,856.75
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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.