Finding the Fourth Proportional to 81,101.86, 121,664.36 and 24,946.65
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Solution
The fourth proportional to 81,101.86, 121,664.36 and 24,946.65 is: 37,423.54
Step by Step Solution
- Step 1: Write the proportion equation
81,101.86 : 121,664.36 = 24,946.65 : x - Step 2: Convert to fraction form
81,101.86/121,664.36 = 24,946.65/x - Step 3: Cross multiply
81,101.86x = 121,664.36 × 24,946.65 - Step 4: Simplify right side
81,101.86x = 3,035,118,268.76 - Step 5: Solve for x
x = 3,035,118,268.76/81,101.86 - Step 6: Final answer
x = 37,423.54
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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.