Finding the Fourth Proportional to 81,726.03, 122,579.93 and 28,408.79
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Solution
The fourth proportional to 81,726.03, 122,579.93 and 28,408.79 is: 42,610.02
Step by Step Solution
- Step 1: Write the proportion equation
81,726.03 : 122,579.93 = 28,408.79 : x - Step 2: Convert to fraction form
81,726.03/122,579.93 = 28,408.79/x - Step 3: Cross multiply
81,726.03x = 122,579.93 × 28,408.79 - Step 4: Simplify right side
81,726.03x = 3,482,347,489.58 - Step 5: Solve for x
x = 3,482,347,489.58/81,726.03 - Step 6: Final answer
x = 42,610.02
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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.