Finding the Fourth Proportional to 75,712.79, 113,462.07 and 41,993.75
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Solution
The fourth proportional to 75,712.79, 113,462.07 and 41,993.75 is: 62,931.21
Step by Step Solution
- Step 1: Write the proportion equation
75,712.79 : 113,462.07 = 41,993.75 : x - Step 2: Convert to fraction form
75,712.79/113,462.07 = 41,993.75/x - Step 3: Cross multiply
75,712.79x = 113,462.07 × 41,993.75 - Step 4: Simplify right side
75,712.79x = 4,764,697,802.06 - Step 5: Solve for x
x = 4,764,697,802.06/75,712.79 - Step 6: Final answer
x = 62,931.21
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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.