Finding the Fourth Proportional to 77,148.84, 115,536.39 and 53,389.81
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Solution
The fourth proportional to 77,148.84, 115,536.39 and 53,389.81 is: 79,955.39
Step by Step Solution
- Step 1: Write the proportion equation
77,148.84 : 115,536.39 = 53,389.81 : x - Step 2: Convert to fraction form
77,148.84/115,536.39 = 53,389.81/x - Step 3: Cross multiply
77,148.84x = 115,536.39 × 53,389.81 - Step 4: Simplify right side
77,148.84x = 6,168,465,910.19 - Step 5: Solve for x
x = 6,168,465,910.19/77,148.84 - Step 6: Final answer
x = 79,955.39
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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.