Finding the Fourth Proportional to 83,281.84, 124,935.68 and 27,108.74
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Solution
The fourth proportional to 83,281.84, 124,935.68 and 27,108.74 is: 40,667.32
Step by Step Solution
- Step 1: Write the proportion equation
83,281.84 : 124,935.68 = 27,108.74 : x - Step 2: Convert to fraction form
83,281.84/124,935.68 = 27,108.74/x - Step 3: Cross multiply
83,281.84x = 124,935.68 × 27,108.74 - Step 4: Simplify right side
83,281.84x = 3,386,848,865.84 - Step 5: Solve for x
x = 3,386,848,865.84/83,281.84 - Step 6: Final answer
x = 40,667.32
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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.