Finding the Fourth Proportional to 96,974.21, 133,823.95 and 56,679.95
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Solution
The fourth proportional to 96,974.21, 133,823.95 and 56,679.95 is: 78,218.06
Step by Step Solution
- Step 1: Write the proportion equation
96,974.21 : 133,823.95 = 56,679.95 : x - Step 2: Convert to fraction form
96,974.21/133,823.95 = 56,679.95/x - Step 3: Cross multiply
96,974.21x = 133,823.95 × 56,679.95 - Step 4: Simplify right side
96,974.21x = 7,585,134,987.66 - Step 5: Solve for x
x = 7,585,134,987.66/96,974.21 - Step 6: Final answer
x = 78,218.06
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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.