Finding the Fourth Proportional to 75,048.48, 103,579.08 and 43,210.68
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Solution
The fourth proportional to 75,048.48, 103,579.08 and 43,210.68 is: 59,637.75
Step by Step Solution
- Step 1: Write the proportion equation
75,048.48 : 103,579.08 = 43,210.68 : x - Step 2: Convert to fraction form
75,048.48/103,579.08 = 43,210.68/x - Step 3: Cross multiply
75,048.48x = 103,579.08 × 43,210.68 - Step 4: Simplify right side
75,048.48x = 4,475,722,480.57 - Step 5: Solve for x
x = 4,475,722,480.57/75,048.48 - Step 6: Final answer
x = 59,637.75
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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.