Finding the Fourth Proportional to 85,865.91, 118,509.14 and 47,637.77
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Solution
The fourth proportional to 85,865.91, 118,509.14 and 47,637.77 is: 65,747.99
Step by Step Solution
- Step 1: Write the proportion equation
85,865.91 : 118,509.14 = 47,637.77 : x - Step 2: Convert to fraction form
85,865.91/118,509.14 = 47,637.77/x - Step 3: Cross multiply
85,865.91x = 118,509.14 × 47,637.77 - Step 4: Simplify right side
85,865.91x = 5,645,511,154.22 - Step 5: Solve for x
x = 5,645,511,154.22/85,865.91 - Step 6: Final answer
x = 65,747.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.