Finding the Fourth Proportional to 83,971.02, 115,890.94 and 48,154.02
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Solution
The fourth proportional to 83,971.02, 115,890.94 and 48,154.02 is: 66,458.82
Step by Step Solution
- Step 1: Write the proportion equation
83,971.02 : 115,890.94 = 48,154.02 : x - Step 2: Convert to fraction form
83,971.02/115,890.94 = 48,154.02/x - Step 3: Cross multiply
83,971.02x = 115,890.94 × 48,154.02 - Step 4: Simplify right side
83,971.02x = 5,580,614,642.58 - Step 5: Solve for x
x = 5,580,614,642.58/83,971.02 - Step 6: Final answer
x = 66,458.82
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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.