Finding the Fourth Proportional to 92,408.97, 138,599.06 and 30,079.05
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Solution
The fourth proportional to 92,408.97, 138,599.06 and 30,079.05 is: 45,113.89
Step by Step Solution
- Step 1: Write the proportion equation
92,408.97 : 138,599.06 = 30,079.05 : x - Step 2: Convert to fraction form
92,408.97/138,599.06 = 30,079.05/x - Step 3: Cross multiply
92,408.97x = 138,599.06 × 30,079.05 - Step 4: Simplify right side
92,408.97x = 4,168,927,905.30 - Step 5: Solve for x
x = 4,168,927,905.30/92,408.97 - Step 6: Final answer
x = 45,113.89
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.