Finding the Fourth Proportional to 84,032.64, 125,971.04 and 31,402.08
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Solution
The fourth proportional to 84,032.64, 125,971.04 and 31,402.08 is: 47,074.00
Step by Step Solution
- Step 1: Write the proportion equation
84,032.64 : 125,971.04 = 31,402.08 : x - Step 2: Convert to fraction form
84,032.64/125,971.04 = 31,402.08/x - Step 3: Cross multiply
84,032.64x = 125,971.04 × 31,402.08 - Step 4: Simplify right side
84,032.64x = 3,955,752,675.76 - Step 5: Solve for x
x = 3,955,752,675.76/84,032.64 - Step 6: Final answer
x = 47,074.00
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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.