Finding the Fourth Proportional to 86,506.76, 119,379.34 and 48,781.02
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Solution
The fourth proportional to 86,506.76, 119,379.34 and 48,781.02 is: 67,317.81
Step by Step Solution
- Step 1: Write the proportion equation
86,506.76 : 119,379.34 = 48,781.02 : x - Step 2: Convert to fraction form
86,506.76/119,379.34 = 48,781.02/x - Step 3: Cross multiply
86,506.76x = 119,379.34 × 48,781.02 - Step 4: Simplify right side
86,506.76x = 5,823,445,972.13 - Step 5: Solve for x
x = 5,823,445,972.13/86,506.76 - Step 6: Final answer
x = 67,317.81
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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.