Finding the Fourth Proportional to 79,123.60, 118,512.60 and 61,454.80
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Solution
The fourth proportional to 79,123.60, 118,512.60 and 61,454.80 is: 92,047.99
Step by Step Solution
- Step 1: Write the proportion equation
79,123.60 : 118,512.60 = 61,454.80 : x - Step 2: Convert to fraction form
79,123.60/118,512.60 = 61,454.80/x - Step 3: Cross multiply
79,123.60x = 118,512.60 × 61,454.80 - Step 4: Simplify right side
79,123.60x = 7,283,168,130.48 - Step 5: Solve for x
x = 7,283,168,130.48/79,123.60 - Step 6: Final answer
x = 92,047.99
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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.