Finding the Fourth Proportional to 77,281.69, 115,929.62 and 23,974.08
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Solution
The fourth proportional to 77,281.69, 115,929.62 and 23,974.08 is: 35,963.31
Step by Step Solution
- Step 1: Write the proportion equation
77,281.69 : 115,929.62 = 23,974.08 : x - Step 2: Convert to fraction form
77,281.69/115,929.62 = 23,974.08/x - Step 3: Cross multiply
77,281.69x = 115,929.62 × 23,974.08 - Step 4: Simplify right side
77,281.69x = 2,779,305,637.54 - Step 5: Solve for x
x = 2,779,305,637.54/77,281.69 - Step 6: Final answer
x = 35,963.31
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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.