Finding the Fourth Proportional to 83,901.84, 115,782.12 and 46,175.28
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Solution
The fourth proportional to 83,901.84, 115,782.12 and 46,175.28 is: 63,720.55
Step by Step Solution
- Step 1: Write the proportion equation
83,901.84 : 115,782.12 = 46,175.28 : x - Step 2: Convert to fraction form
83,901.84/115,782.12 = 46,175.28/x - Step 3: Cross multiply
83,901.84x = 115,782.12 × 46,175.28 - Step 4: Simplify right side
83,901.84x = 5,346,271,809.99 - Step 5: Solve for x
x = 5,346,271,809.99/83,901.84 - Step 6: Final answer
x = 63,720.55
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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.