Finding the Fourth Proportional to 112,880.79, 155,782.49 and 62,579.79
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Solution
The fourth proportional to 112,880.79, 155,782.49 and 62,579.79 is: 86,363.99
Step by Step Solution
- Step 1: Write the proportion equation
112,880.79 : 155,782.49 = 62,579.79 : x - Step 2: Convert to fraction form
112,880.79/155,782.49 = 62,579.79/x - Step 3: Cross multiply
112,880.79x = 155,782.49 × 62,579.79 - Step 4: Simplify right side
112,880.79x = 9,748,835,509.88 - Step 5: Solve for x
x = 9,748,835,509.88/112,880.79 - Step 6: Final answer
x = 86,363.99
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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.