Finding the Fourth Proportional to 87,788.24, 121,147.37 and 47,502.71
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Solution
The fourth proportional to 87,788.24, 121,147.37 and 47,502.71 is: 65,553.52
Step by Step Solution
- Step 1: Write the proportion equation
87,788.24 : 121,147.37 = 47,502.71 : x - Step 2: Convert to fraction form
87,788.24/121,147.37 = 47,502.71/x - Step 3: Cross multiply
87,788.24x = 121,147.37 × 47,502.71 - Step 4: Simplify right side
87,788.24x = 5,754,827,541.12 - Step 5: Solve for x
x = 5,754,827,541.12/87,788.24 - Step 6: Final answer
x = 65,553.52
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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.