Finding the Fourth Proportional to 97,620.24, 134,634.06 and 77,445.14
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Solution
The fourth proportional to 97,620.24, 134,634.06 and 77,445.14 is: 106,809.34
Step by Step Solution
- Step 1: Write the proportion equation
97,620.24 : 134,634.06 = 77,445.14 : x - Step 2: Convert to fraction form
97,620.24/134,634.06 = 77,445.14/x - Step 3: Cross multiply
97,620.24x = 134,634.06 × 77,445.14 - Step 4: Simplify right side
97,620.24x = 10,426,753,625.47 - Step 5: Solve for x
x = 10,426,753,625.47/97,620.24 - Step 6: Final answer
x = 106,809.34
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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.