Finding the Fourth Proportional to 79,134.84, 109,213.50 and 47,303.06
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Solution
The fourth proportional to 79,134.84, 109,213.50 and 47,303.06 is: 65,282.66
Step by Step Solution
- Step 1: Write the proportion equation
79,134.84 : 109,213.50 = 47,303.06 : x - Step 2: Convert to fraction form
79,134.84/109,213.50 = 47,303.06/x - Step 3: Cross multiply
79,134.84x = 109,213.50 × 47,303.06 - Step 4: Simplify right side
79,134.84x = 5,166,132,743.31 - Step 5: Solve for x
x = 5,166,132,743.31/79,134.84 - Step 6: Final answer
x = 65,282.66
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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.