Finding the Fourth Proportional to 90,437.42, 135,628.38 and 62,536.76
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Solution
The fourth proportional to 90,437.42, 135,628.38 and 62,536.76 is: 93,785.95
Step by Step Solution
- Step 1: Write the proportion equation
90,437.42 : 135,628.38 = 62,536.76 : x - Step 2: Convert to fraction form
90,437.42/135,628.38 = 62,536.76/x - Step 3: Cross multiply
90,437.42x = 135,628.38 × 62,536.76 - Step 4: Simplify right side
90,437.42x = 8,481,759,449.25 - Step 5: Solve for x
x = 8,481,759,449.25/90,437.42 - Step 6: Final answer
x = 93,785.95
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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.