Finding the Fourth Proportional to 89,931.24, 124,104.40 and 49,645.03
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Solution
The fourth proportional to 89,931.24, 124,104.40 and 49,645.03 is: 68,509.75
Step by Step Solution
- Step 1: Write the proportion equation
89,931.24 : 124,104.40 = 49,645.03 : x - Step 2: Convert to fraction form
89,931.24/124,104.40 = 49,645.03/x - Step 3: Cross multiply
89,931.24x = 124,104.40 × 49,645.03 - Step 4: Simplify right side
89,931.24x = 6,161,166,661.13 - Step 5: Solve for x
x = 6,161,166,661.13/89,931.24 - Step 6: Final answer
x = 68,509.75
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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.