Finding the Fourth Proportional to 73,985.81, 102,098.88 and 40,451.81
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Solution
The fourth proportional to 73,985.81, 102,098.88 and 40,451.81 is: 55,822.66
Step by Step Solution
- Step 1: Write the proportion equation
73,985.81 : 102,098.88 = 40,451.81 : x - Step 2: Convert to fraction form
73,985.81/102,098.88 = 40,451.81/x - Step 3: Cross multiply
73,985.81x = 102,098.88 × 40,451.81 - Step 4: Simplify right side
73,985.81x = 4,130,084,494.97 - Step 5: Solve for x
x = 4,130,084,494.97/73,985.81 - Step 6: Final answer
x = 55,822.66
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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.