Finding the Fourth Proportional to 75,848.90, 113,681.10 and 53,668.68
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Solution
The fourth proportional to 75,848.90, 113,681.10 and 53,668.68 is: 80,437.75
Step by Step Solution
- Step 1: Write the proportion equation
75,848.90 : 113,681.10 = 53,668.68 : x - Step 2: Convert to fraction form
75,848.90/113,681.10 = 53,668.68/x - Step 3: Cross multiply
75,848.90x = 113,681.10 × 53,668.68 - Step 4: Simplify right side
75,848.90x = 6,101,114,577.95 - Step 5: Solve for x
x = 6,101,114,577.95/75,848.90 - Step 6: Final answer
x = 80,437.75
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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.