Finding the Fourth Proportional to 85,777.14, 128,641.11 and 29,602.68
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Solution
The fourth proportional to 85,777.14, 128,641.11 and 29,602.68 is: 44,395.53
Step by Step Solution
- Step 1: Write the proportion equation
85,777.14 : 128,641.11 = 29,602.68 : x - Step 2: Convert to fraction form
85,777.14/128,641.11 = 29,602.68/x - Step 3: Cross multiply
85,777.14x = 128,641.11 × 29,602.68 - Step 4: Simplify right side
85,777.14x = 3,808,121,614.17 - Step 5: Solve for x
x = 3,808,121,614.17/85,777.14 - Step 6: Final answer
x = 44,395.53
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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.