Finding the Fourth Proportional to 84,509.36, 126,792.16 and 28,355.04
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Solution
The fourth proportional to 84,509.36, 126,792.16 and 28,355.04 is: 42,541.99
Step by Step Solution
- Step 1: Write the proportion equation
84,509.36 : 126,792.16 = 28,355.04 : x - Step 2: Convert to fraction form
84,509.36/126,792.16 = 28,355.04/x - Step 3: Cross multiply
84,509.36x = 126,792.16 × 28,355.04 - Step 4: Simplify right side
84,509.36x = 3,595,196,768.49 - Step 5: Solve for x
x = 3,595,196,768.49/84,509.36 - Step 6: Final answer
x = 42,541.99
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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.