Finding the Fourth Proportional to 77,132.24, 115,511.58 and 53,373.18
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Solution
The fourth proportional to 77,132.24, 115,511.58 and 53,373.18 is: 79,930.53
Step by Step Solution
- Step 1: Write the proportion equation
77,132.24 : 115,511.58 = 53,373.18 : x - Step 2: Convert to fraction form
77,132.24/115,511.58 = 53,373.18/x - Step 3: Cross multiply
77,132.24x = 115,511.58 × 53,373.18 - Step 4: Simplify right side
77,132.24x = 6,165,220,351.42 - Step 5: Solve for x
x = 6,165,220,351.42/77,132.24 - Step 6: Final answer
x = 79,930.53
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.