Finding the Fourth Proportional to 83,897.44, 115,740.16 and 49,886.55
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Solution
The fourth proportional to 83,897.44, 115,740.16 and 49,886.55 is: 68,820.66
Step by Step Solution
- Step 1: Write the proportion equation
83,897.44 : 115,740.16 = 49,886.55 : x - Step 2: Convert to fraction form
83,897.44/115,740.16 = 49,886.55/x - Step 3: Cross multiply
83,897.44x = 115,740.16 × 49,886.55 - Step 4: Simplify right side
83,897.44x = 5,773,877,154.13 - Step 5: Solve for x
x = 5,773,877,154.13/83,897.44 - Step 6: Final answer
x = 68,820.66
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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.