Finding the Fourth Proportional to 88,748.98, 122,404.36 and 56,920.30
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Solution
The fourth proportional to 88,748.98, 122,404.36 and 56,920.30 is: 78,505.61
Step by Step Solution
- Step 1: Write the proportion equation
88,748.98 : 122,404.36 = 56,920.30 : x - Step 2: Convert to fraction form
88,748.98/122,404.36 = 56,920.30/x - Step 3: Cross multiply
88,748.98x = 122,404.36 × 56,920.30 - Step 4: Simplify right side
88,748.98x = 6,967,292,892.51 - Step 5: Solve for x
x = 6,967,292,892.51/88,748.98 - Step 6: Final answer
x = 78,505.61
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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.