Finding the Fourth Proportional to 78,897.14, 118,346.76 and 26,306.65
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Solution
The fourth proportional to 78,897.14, 118,346.76 and 26,306.65 is: 39,460.32
Step by Step Solution
- Step 1: Write the proportion equation
78,897.14 : 118,346.76 = 26,306.65 : x - Step 2: Convert to fraction form
78,897.14/118,346.76 = 26,306.65/x - Step 3: Cross multiply
78,897.14x = 118,346.76 × 26,306.65 - Step 4: Simplify right side
78,897.14x = 3,113,306,202.22 - Step 5: Solve for x
x = 3,113,306,202.22/78,897.14 - Step 6: Final answer
x = 39,460.32
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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.