Finding the Fourth Proportional to 93,358.26, 128,815.04 and 54,588.60
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Solution
The fourth proportional to 93,358.26, 128,815.04 and 54,588.60 is: 75,320.95
Step by Step Solution
- Step 1: Write the proportion equation
93,358.26 : 128,815.04 = 54,588.60 : x - Step 2: Convert to fraction form
93,358.26/128,815.04 = 54,588.60/x - Step 3: Cross multiply
93,358.26x = 128,815.04 × 54,588.60 - Step 4: Simplify right side
93,358.26x = 7,031,832,692.54 - Step 5: Solve for x
x = 7,031,832,692.54/93,358.26 - Step 6: Final answer
x = 75,320.95
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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.