Finding the Fourth Proportional to 77,467.68, 116,201.52 and 54,139.68
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Solution
The fourth proportional to 77,467.68, 116,201.52 and 54,139.68 is: 81,209.52
Step by Step Solution
- Step 1: Write the proportion equation
77,467.68 : 116,201.52 = 54,139.68 : x - Step 2: Convert to fraction form
77,467.68/116,201.52 = 54,139.68/x - Step 3: Cross multiply
77,467.68x = 116,201.52 × 54,139.68 - Step 4: Simplify right side
77,467.68x = 6,291,113,108.31 - Step 5: Solve for x
x = 6,291,113,108.31/77,467.68 - Step 6: Final answer
x = 81,209.52
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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.