Finding the Fourth Proportional to 97,727.48, 134,840.40 and 57,438.08
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Solution
The fourth proportional to 97,727.48, 134,840.40 and 57,438.08 is: 79,250.73
Step by Step Solution
- Step 1: Write the proportion equation
97,727.48 : 134,840.40 = 57,438.08 : x - Step 2: Convert to fraction form
97,727.48/134,840.40 = 57,438.08/x - Step 3: Cross multiply
97,727.48x = 134,840.40 × 57,438.08 - Step 4: Simplify right side
97,727.48x = 7,744,973,682.43 - Step 5: Solve for x
x = 7,744,973,682.43/97,727.48 - Step 6: Final answer
x = 79,250.73
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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.