Finding the Fourth Proportional to 83,703.24, 115,492.50 and 49,723.19
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Solution
The fourth proportional to 83,703.24, 115,492.50 and 49,723.19 is: 68,607.32
Step by Step Solution
- Step 1: Write the proportion equation
83,703.24 : 115,492.50 = 49,723.19 : x - Step 2: Convert to fraction form
83,703.24/115,492.50 = 49,723.19/x - Step 3: Cross multiply
83,703.24x = 115,492.50 × 49,723.19 - Step 4: Simplify right side
83,703.24x = 5,742,654,943.61 - Step 5: Solve for x
x = 5,742,654,943.61/83,703.24 - Step 6: Final answer
x = 68,607.32
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1.5x scale
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.