Finding the Fourth Proportional to 77,014.68, 106,234.38 and 53,140.20
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Solution
The fourth proportional to 77,014.68, 106,234.38 and 53,140.20 is: 73,301.82
Step by Step Solution
- Step 1: Write the proportion equation
77,014.68 : 106,234.38 = 53,140.20 : x - Step 2: Convert to fraction form
77,014.68/106,234.38 = 53,140.20/x - Step 3: Cross multiply
77,014.68x = 106,234.38 × 53,140.20 - Step 4: Simplify right side
77,014.68x = 5,645,316,200.08 - Step 5: Solve for x
x = 5,645,316,200.08/77,014.68 - Step 6: Final answer
x = 73,301.82
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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.