Finding the Fourth Proportional to 97,854.57, 135,065.88 and 57,581.28
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Solution
The fourth proportional to 97,854.57, 135,065.88 and 57,581.28 is: 79,477.80
Step by Step Solution
- Step 1: Write the proportion equation
97,854.57 : 135,065.88 = 57,581.28 : x - Step 2: Convert to fraction form
97,854.57/135,065.88 = 57,581.28/x - Step 3: Cross multiply
97,854.57x = 135,065.88 × 57,581.28 - Step 4: Simplify right side
97,854.57x = 7,777,266,254.73 - Step 5: Solve for x
x = 7,777,266,254.73/97,854.57 - Step 6: Final answer
x = 79,477.80
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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.