Finding the Fourth Proportional to 78,266.98, 117,349.41 and 51,532.05
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Solution
The fourth proportional to 78,266.98, 117,349.41 and 51,532.05 is: 77,264.46
Step by Step Solution
- Step 1: Write the proportion equation
78,266.98 : 117,349.41 = 51,532.05 : x - Step 2: Convert to fraction form
78,266.98/117,349.41 = 51,532.05/x - Step 3: Cross multiply
78,266.98x = 117,349.41 × 51,532.05 - Step 4: Simplify right side
78,266.98x = 6,047,255,663.59 - Step 5: Solve for x
x = 6,047,255,663.59/78,266.98 - Step 6: Final answer
x = 77,264.46
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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.