Finding the Fourth Proportional to 87,903.06, 121,306.80 and 47,616.82
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Solution
The fourth proportional to 87,903.06, 121,306.80 and 47,616.82 is: 65,711.52
Step by Step Solution
- Step 1: Write the proportion equation
87,903.06 : 121,306.80 = 47,616.82 : x - Step 2: Convert to fraction form
87,903.06/121,306.80 = 47,616.82/x - Step 3: Cross multiply
87,903.06x = 121,306.80 × 47,616.82 - Step 4: Simplify right side
87,903.06x = 5,776,243,667.83 - Step 5: Solve for x
x = 5,776,243,667.83/87,903.06 - Step 6: Final answer
x = 65,711.52
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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.