Finding the Fourth Proportional to 87,925.21, 121,335.20 and 49,683.95
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Solution
The fourth proportional to 87,925.21, 121,335.20 and 49,683.95 is: 68,562.95
Step by Step Solution
- Step 1: Write the proportion equation
87,925.21 : 121,335.20 = 49,683.95 : x - Step 2: Convert to fraction form
87,925.21/121,335.20 = 49,683.95/x - Step 3: Cross multiply
87,925.21x = 121,335.20 × 49,683.95 - Step 4: Simplify right side
87,925.21x = 6,028,411,796.27 - Step 5: Solve for x
x = 6,028,411,796.27/87,925.21 - Step 6: Final answer
x = 68,562.95
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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.