Finding the Fourth Proportional to 87,681.99, 121,001.11 and 47,395.72
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Solution
The fourth proportional to 87,681.99, 121,001.11 and 47,395.72 is: 65,406.07
Step by Step Solution
- Step 1: Write the proportion equation
87,681.99 : 121,001.11 = 47,395.72 : x - Step 2: Convert to fraction form
87,681.99/121,001.11 = 47,395.72/x - Step 3: Cross multiply
87,681.99x = 121,001.11 × 47,395.72 - Step 4: Simplify right side
87,681.99x = 5,734,934,729.25 - Step 5: Solve for x
x = 5,734,934,729.25/87,681.99 - Step 6: Final answer
x = 65,406.07
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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.