Finding the Fourth Proportional to 89,455.13, 123,317.98 and 62,513.99
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Solution
The fourth proportional to 89,455.13, 123,317.98 and 62,513.99 is: 86,178.38
Step by Step Solution
- Step 1: Write the proportion equation
89,455.13 : 123,317.98 = 62,513.99 : x - Step 2: Convert to fraction form
89,455.13/123,317.98 = 62,513.99/x - Step 3: Cross multiply
89,455.13x = 123,317.98 × 62,513.99 - Step 4: Simplify right side
89,455.13x = 7,709,098,195.67 - Step 5: Solve for x
x = 7,709,098,195.67/89,455.13 - Step 6: Final answer
x = 86,178.38
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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.