Finding the Fourth Proportional to 97,860.25, 135,044.85 and 57,576.62
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Solution
The fourth proportional to 97,860.25, 135,044.85 and 57,576.62 is: 79,454.39
Step by Step Solution
- Step 1: Write the proportion equation
97,860.25 : 135,044.85 = 57,576.62 : x - Step 2: Convert to fraction form
97,860.25/135,044.85 = 57,576.62/x - Step 3: Cross multiply
97,860.25x = 135,044.85 × 57,576.62 - Step 4: Simplify right side
97,860.25x = 7,775,426,564.93 - Step 5: Solve for x
x = 7,775,426,564.93/97,860.25 - Step 6: Final answer
x = 79,454.39
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1.5x scale
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.