Finding the Fourth Proportional to 76,136.35, 105,068.40 and 41,210.99
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Solution
The fourth proportional to 76,136.35, 105,068.40 and 41,210.99 is: 56,871.29
Step by Step Solution
- Step 1: Write the proportion equation
76,136.35 : 105,068.40 = 41,210.99 : x - Step 2: Convert to fraction form
76,136.35/105,068.40 = 41,210.99/x - Step 3: Cross multiply
76,136.35x = 105,068.40 × 41,210.99 - Step 4: Simplify right side
76,136.35x = 4,329,972,727.65 - Step 5: Solve for x
x = 4,329,972,727.65/76,136.35 - Step 6: Final answer
x = 56,871.29
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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.