Finding the Fourth Proportional to 115,777.50, 159,772.95 and 62,785.50
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Solution
The fourth proportional to 115,777.50, 159,772.95 and 62,785.50 is: 86,643.99
Step by Step Solution
- Step 1: Write the proportion equation
115,777.50 : 159,772.95 = 62,785.50 : x - Step 2: Convert to fraction form
115,777.50/159,772.95 = 62,785.50/x - Step 3: Cross multiply
115,777.50x = 159,772.95 × 62,785.50 - Step 4: Simplify right side
115,777.50x = 10,031,424,552.23 - Step 5: Solve for x
x = 10,031,424,552.23/115,777.50 - Step 6: Final answer
x = 86,643.99
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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.