Finding the Fourth Proportional to 81,303.35, 121,972.95 and 24,374.99
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Solution
The fourth proportional to 81,303.35, 121,972.95 and 24,374.99 is: 36,567.85
Step by Step Solution
- Step 1: Write the proportion equation
81,303.35 : 121,972.95 = 24,374.99 : x - Step 2: Convert to fraction form
81,303.35/121,972.95 = 24,374.99/x - Step 3: Cross multiply
81,303.35x = 121,972.95 × 24,374.99 - Step 4: Simplify right side
81,303.35x = 2,973,088,704.78 - Step 5: Solve for x
x = 2,973,088,704.78/81,303.35 - Step 6: Final answer
x = 36,567.85
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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.