Finding the Fourth Proportional to 86,688.13, 130,032.23 and 56,727.62
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Solution
The fourth proportional to 86,688.13, 130,032.23 and 56,727.62 is: 85,091.45
Step by Step Solution
- Step 1: Write the proportion equation
86,688.13 : 130,032.23 = 56,727.62 : x - Step 2: Convert to fraction form
86,688.13/130,032.23 = 56,727.62/x - Step 3: Cross multiply
86,688.13x = 130,032.23 × 56,727.62 - Step 4: Simplify right side
86,688.13x = 7,376,418,647.55 - Step 5: Solve for x
x = 7,376,418,647.55/86,688.13 - Step 6: Final answer
x = 85,091.45
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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.