Finding the Fourth Proportional to 101,751.17, 140,416.61 and 56,436.09
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Solution
The fourth proportional to 101,751.17, 140,416.61 and 56,436.09 is: 77,881.80
Step by Step Solution
- Step 1: Write the proportion equation
101,751.17 : 140,416.61 = 56,436.09 : x - Step 2: Convert to fraction form
101,751.17/140,416.61 = 56,436.09/x - Step 3: Cross multiply
101,751.17x = 140,416.61 × 56,436.09 - Step 4: Simplify right side
101,751.17x = 7,924,563,736.53 - Step 5: Solve for x
x = 7,924,563,736.53/101,751.17 - Step 6: Final answer
x = 77,881.80
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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.