Finding the Fourth Proportional to 83,670.24, 115,460.88 and 45,428.88
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Solution
The fourth proportional to 83,670.24, 115,460.88 and 45,428.88 is: 62,689.65
Step by Step Solution
- Step 1: Write the proportion equation
83,670.24 : 115,460.88 = 45,428.88 : x - Step 2: Convert to fraction form
83,670.24/115,460.88 = 45,428.88/x - Step 3: Cross multiply
83,670.24x = 115,460.88 × 45,428.88 - Step 4: Simplify right side
83,670.24x = 5,245,258,462.21 - Step 5: Solve for x
x = 5,245,258,462.21/83,670.24 - Step 6: Final answer
x = 62,689.65
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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.