Finding the Fourth Proportional to 77,325.35, 106,707.24 and 45,057.98
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Solution
The fourth proportional to 77,325.35, 106,707.24 and 45,057.98 is: 62,178.99
Step by Step Solution
- Step 1: Write the proportion equation
77,325.35 : 106,707.24 = 45,057.98 : x - Step 2: Convert to fraction form
77,325.35/106,707.24 = 45,057.98/x - Step 3: Cross multiply
77,325.35x = 106,707.24 × 45,057.98 - Step 4: Simplify right side
77,325.35x = 4,808,012,152.24 - Step 5: Solve for x
x = 4,808,012,152.24/77,325.35 - Step 6: Final answer
x = 62,178.99
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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.