Finding the Fourth Proportional to 83,746.72, 125,661.36 and 39,377.44
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Solution
The fourth proportional to 83,746.72, 125,661.36 and 39,377.44 is: 59,085.57
Step by Step Solution
- Step 1: Write the proportion equation
83,746.72 : 125,661.36 = 39,377.44 : x - Step 2: Convert to fraction form
83,746.72/125,661.36 = 39,377.44/x - Step 3: Cross multiply
83,746.72x = 125,661.36 × 39,377.44 - Step 4: Simplify right side
83,746.72x = 4,948,222,663.72 - Step 5: Solve for x
x = 4,948,222,663.72/83,746.72 - Step 6: Final answer
x = 59,085.57
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1.5x scale
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.