Finding the Fourth Proportional to 86,742.14, 130,044.62 and 56,941.98
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Solution
The fourth proportional to 86,742.14, 130,044.62 and 56,941.98 is: 85,367.95
Step by Step Solution
- Step 1: Write the proportion equation
86,742.14 : 130,044.62 = 56,941.98 : x - Step 2: Convert to fraction form
86,742.14/130,044.62 = 56,941.98/x - Step 3: Cross multiply
86,742.14x = 130,044.62 × 56,941.98 - Step 4: Simplify right side
86,742.14x = 7,404,997,866.44 - Step 5: Solve for x
x = 7,404,997,866.44/86,742.14 - Step 6: Final answer
x = 85,367.95
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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.