Finding the Fourth Proportional to 92,170.98, 138,343.14 and 47,829.15
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Solution
The fourth proportional to 92,170.98, 138,343.14 and 47,829.15 is: 71,788.70
Step by Step Solution
- Step 1: Write the proportion equation
92,170.98 : 138,343.14 = 47,829.15 : x - Step 2: Convert to fraction form
92,170.98/138,343.14 = 47,829.15/x - Step 3: Cross multiply
92,170.98x = 138,343.14 × 47,829.15 - Step 4: Simplify right side
92,170.98x = 6,616,834,794.53 - Step 5: Solve for x
x = 6,616,834,794.53/92,170.98 - Step 6: Final answer
x = 71,788.70
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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.