Finding the Fourth Proportional to 83,862.12, 115,730.30 and 45,622.02
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Solution
The fourth proportional to 83,862.12, 115,730.30 and 45,622.02 is: 62,958.70
Step by Step Solution
- Step 1: Write the proportion equation
83,862.12 : 115,730.30 = 45,622.02 : x - Step 2: Convert to fraction form
83,862.12/115,730.30 = 45,622.02/x - Step 3: Cross multiply
83,862.12x = 115,730.30 × 45,622.02 - Step 4: Simplify right side
83,862.12x = 5,279,850,061.21 - Step 5: Solve for x
x = 5,279,850,061.21/83,862.12 - Step 6: Final answer
x = 62,958.70
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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.