Finding the Fourth Proportional to 75,368.76, 104,009.30 and 47,090.84
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Solution
The fourth proportional to 75,368.76, 104,009.30 and 47,090.84 is: 64,985.62
Step by Step Solution
- Step 1: Write the proportion equation
75,368.76 : 104,009.30 = 47,090.84 : x - Step 2: Convert to fraction form
75,368.76/104,009.30 = 47,090.84/x - Step 3: Cross multiply
75,368.76x = 104,009.30 × 47,090.84 - Step 4: Simplify right side
75,368.76x = 4,897,885,304.81 - Step 5: Solve for x
x = 4,897,885,304.81/75,368.76 - Step 6: Final answer
x = 64,985.62
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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.