Finding the Fourth Proportional to 84,038.67, 115,972.74 and 46,312.92
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Solution
The fourth proportional to 84,038.67, 115,972.74 and 46,312.92 is: 63,911.49
Step by Step Solution
- Step 1: Write the proportion equation
84,038.67 : 115,972.74 = 46,312.92 : x - Step 2: Convert to fraction form
84,038.67/115,972.74 = 46,312.92/x - Step 3: Cross multiply
84,038.67x = 115,972.74 × 46,312.92 - Step 4: Simplify right side
84,038.67x = 5,371,036,229.80 - Step 5: Solve for x
x = 5,371,036,229.80/84,038.67 - Step 6: Final answer
x = 63,911.49
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1.5x scale
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.