Finding the Fourth Proportional to 76,963.02, 106,207.92 and 42,972.03
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Solution
The fourth proportional to 76,963.02, 106,207.92 and 42,972.03 is: 59,300.82
Step by Step Solution
- Step 1: Write the proportion equation
76,963.02 : 106,207.92 = 42,972.03 : x - Step 2: Convert to fraction form
76,963.02/106,207.92 = 42,972.03/x - Step 3: Cross multiply
76,963.02x = 106,207.92 × 42,972.03 - Step 4: Simplify right side
76,963.02x = 4,563,969,924.48 - Step 5: Solve for x
x = 4,563,969,924.48/76,963.02 - Step 6: Final answer
x = 59,300.82
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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.