Finding the Fourth Proportional to 83,497.84, 115,235.26 and 47,693.21
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Solution
The fourth proportional to 83,497.84, 115,235.26 and 47,693.21 is: 65,821.33
Step by Step Solution
- Step 1: Write the proportion equation
83,497.84 : 115,235.26 = 47,693.21 : x - Step 2: Convert to fraction form
83,497.84/115,235.26 = 47,693.21/x - Step 3: Cross multiply
83,497.84x = 115,235.26 × 47,693.21 - Step 4: Simplify right side
83,497.84x = 5,495,938,759.18 - Step 5: Solve for x
x = 5,495,938,759.18/83,497.84 - Step 6: Final answer
x = 65,821.33
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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.