Finding the Fourth Proportional to 70,477.80, 105,513.64 and 46,808.99
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Solution
The fourth proportional to 70,477.80, 105,513.64 and 46,808.99 is: 70,078.62
Step by Step Solution
- Step 1: Write the proportion equation
70,477.80 : 105,513.64 = 46,808.99 : x - Step 2: Convert to fraction form
70,477.80/105,513.64 = 46,808.99/x - Step 3: Cross multiply
70,477.80x = 105,513.64 × 46,808.99 - Step 4: Simplify right side
70,477.80x = 4,938,986,670.71 - Step 5: Solve for x
x = 4,938,986,670.71/70,477.80 - Step 6: Final answer
x = 70,078.62
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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.