Finding the Fourth Proportional to 93,175.20, 139,762.80 and 57,745.80
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Solution
The fourth proportional to 93,175.20, 139,762.80 and 57,745.80 is: 86,618.70
Step by Step Solution
- Step 1: Write the proportion equation
93,175.20 : 139,762.80 = 57,745.80 : x - Step 2: Convert to fraction form
93,175.20/139,762.80 = 57,745.80/x - Step 3: Cross multiply
93,175.20x = 139,762.80 × 57,745.80 - Step 4: Simplify right side
93,175.20x = 8,070,714,696.24 - Step 5: Solve for x
x = 8,070,714,696.24/93,175.20 - Step 6: Final answer
x = 86,618.70
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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.