Finding the Fourth Proportional to 75,135.48, 103,686.30 and 43,303.68
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Solution
The fourth proportional to 75,135.48, 103,686.30 and 43,303.68 is: 59,758.70
Step by Step Solution
- Step 1: Write the proportion equation
75,135.48 : 103,686.30 = 43,303.68 : x - Step 2: Convert to fraction form
75,135.48/103,686.30 = 43,303.68/x - Step 3: Cross multiply
75,135.48x = 103,686.30 × 43,303.68 - Step 4: Simplify right side
75,135.48x = 4,489,998,355.58 - Step 5: Solve for x
x = 4,489,998,355.58/75,135.48 - Step 6: Final answer
x = 59,758.70
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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.