Finding the Fourth Proportional to 97,875.80, 135,062.13 and 57,581.75
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Solution
The fourth proportional to 97,875.80, 135,062.13 and 57,581.75 is: 79,459.01
Step by Step Solution
- Step 1: Write the proportion equation
97,875.80 : 135,062.13 = 57,581.75 : x - Step 2: Convert to fraction form
97,875.80/135,062.13 = 57,581.75/x - Step 3: Cross multiply
97,875.80x = 135,062.13 × 57,581.75 - Step 4: Simplify right side
97,875.80x = 7,777,113,804.13 - Step 5: Solve for x
x = 7,777,113,804.13/97,875.80 - Step 6: Final answer
x = 79,459.01
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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.