Finding the Fourth Proportional to 75,013.48, 112,420.86 and 39,877.48
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Solution
The fourth proportional to 75,013.48, 112,420.86 and 39,877.48 is: 59,763.40
Step by Step Solution
- Step 1: Write the proportion equation
75,013.48 : 112,420.86 = 39,877.48 : x - Step 2: Convert to fraction form
75,013.48/112,420.86 = 39,877.48/x - Step 3: Cross multiply
75,013.48x = 112,420.86 × 39,877.48 - Step 4: Simplify right side
75,013.48x = 4,483,060,596.23 - Step 5: Solve for x
x = 4,483,060,596.23/75,013.48 - Step 6: Final answer
x = 59,763.40
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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.