Finding the Fourth Proportional to 98,577.21, 147,971.07 and 42,445.11
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Solution
The fourth proportional to 98,577.21, 147,971.07 and 42,445.11 is: 63,712.99
Step by Step Solution
- Step 1: Write the proportion equation
98,577.21 : 147,971.07 = 42,445.11 : x - Step 2: Convert to fraction form
98,577.21/147,971.07 = 42,445.11/x - Step 3: Cross multiply
98,577.21x = 147,971.07 × 42,445.11 - Step 4: Simplify right side
98,577.21x = 6,280,648,342.97 - Step 5: Solve for x
x = 6,280,648,342.97/98,577.21 - Step 6: Final answer
x = 63,712.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.