Finding the Fourth Proportional to 83,888.60, 115,762.84 and 48,053.68
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Solution
The fourth proportional to 83,888.60, 115,762.84 and 48,053.68 is: 66,312.11
Step by Step Solution
- Step 1: Write the proportion equation
83,888.60 : 115,762.84 = 48,053.68 : x - Step 2: Convert to fraction form
83,888.60/115,762.84 = 48,053.68/x - Step 3: Cross multiply
83,888.60x = 115,762.84 × 48,053.68 - Step 4: Simplify right side
83,888.60x = 5,562,830,059.71 - Step 5: Solve for x
x = 5,562,830,059.71/83,888.60 - Step 6: Final answer
x = 66,312.11
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.