Finding the Fourth Proportional to 87,886.32, 121,156.80 and 62,692.08
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Solution
The fourth proportional to 87,886.32, 121,156.80 and 62,692.08 is: 86,424.96
Step by Step Solution
- Step 1: Write the proportion equation
87,886.32 : 121,156.80 = 62,692.08 : x - Step 2: Convert to fraction form
87,886.32/121,156.80 = 62,692.08/x - Step 3: Cross multiply
87,886.32x = 121,156.80 × 62,692.08 - Step 4: Simplify right side
87,886.32x = 7,595,571,798.14 - Step 5: Solve for x
x = 7,595,571,798.14/87,886.32 - Step 6: Final answer
x = 86,424.96
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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.