Finding the Fourth Proportional to 67,368.75, 100,985.68 and 55,558.95
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Solution
The fourth proportional to 67,368.75, 100,985.68 and 55,558.95 is: 83,282.80
Step by Step Solution
- Step 1: Write the proportion equation
67,368.75 : 100,985.68 = 55,558.95 : x - Step 2: Convert to fraction form
67,368.75/100,985.68 = 55,558.95/x - Step 3: Cross multiply
67,368.75x = 100,985.68 × 55,558.95 - Step 4: Simplify right side
67,368.75x = 5,610,658,345.84 - Step 5: Solve for x
x = 5,610,658,345.84/67,368.75 - Step 6: Final answer
x = 83,282.80
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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.